SCH 3U- R.H.KING ACADEMY
Name:________________________
Chemical Nomenclature Unit
Valence Value
The valence value of an element is defined as the number of electrons an atom of that element will
gain/lose/share when forming a compound. Elements have a valence value determined by their group on
the Periodic table unless otherwise indicated by the name.
I
2
3
4
3
2
1
0
Cross-Over Rule for Writing Formulas
STEPS
1. Write down the symbols of
the elements in the order given
in the name.
2. Write the valences above the
elements symbol.
3. Divide the valences by the
highest common multiple.
4. Cross-over valences
5. Drop all 1’s and unnecessary
brackets
sodium
chloride
magnesium
oxide
calcium
fluoride
lithium
sulphate
aluminum
carbonate
Na Cl
Mg O
Ca F
Li SO4
Al CO3
1 1
Na Cl
1 1
Na Cl
Na1Cl1
NaCl
2 2
Mg O
1 1
Mg O
Mg1O1
MgO
2 1
Ca F
2 1
Ca F
Ca1F2
CaF2
1 2
Li SO4
1 2
Li SO4
Li2(SO4)1
Li2SO4
3 2
Al CO3
3 2
Al CO3
Al2(CO3)3
Al2(CO3)3
Notes:
a) You should be able to do all 5 steps in your head when you are finished the unit.
b) When naming compounds, the least electronegative element is usually written first.
22c) Groups of elements such as SO4 and CO3 are referred to as radicals or polyatomic ions. These radicals
behave as if they were a single entity and follow the cross over rule in the same manner as other single
elements. Brackets are used in the formula only if there are 2 or more of the radical indicated in the
formula. For example, brackets are used in Al2(SO4)3 but not Na2SO4.
Binary Ionic Compounds
A binary compound contains 2 elements only.
Rules for Binary Ionic Compounds:
a) The name of the binary compound always ends in "ide".
b) The first mentioned element may have more than one valence and if it does this must be indicated in
the name.
c) If the valence of the first element is not indicated in the name, their valence value is determined by
their group on the Periodic table.
A) Binary Compounds where the first element has 1 valence only
Use rule “c” and the cross-over rule. Silver has a valence of 1, zinc and cadmium have a valence of 2.
Examples:
sodium oxide Na2O
calcium sulfide CaS
magnesium bromide MgBr2
W1
SCH 3U- R.H.KING ACADEMY
Name:________________________
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
calcium nitride
__Ca3N2_
silver sulphide
__Ag2S_
barium iodide
__BaI2__
cadmium oxide
__CdO__
zinc silicide
__Zn2Si__
magnesium chloride
__MgCl2_
aluminum carbide
__Al4C3__
sodium fluoride
__NaF__
barium carbide
__Ba2C__
aluminum bromide
__AlBr3_
potassium bromide
__KBr___
cesium phosphide
__Cs3P__
LiCl
___lithium chloride_________
K2S
____potassium sulfide_________
BaO
___barium oxide___________
Al2O3
____aluminum oxide__________
B) Binary Compounds with Multivalent Elements
Many transition metals and some other elements have multiple valence values and therefore can form multiple
compounds with the same non-metal. Due to this it is necessary to indicate the valence of the metal in the name of the
compound using either the Stock (IUPAC or Roman Numeral) or Classical (“ous” and “ic”) method. The second element
(non-metal) always has a valence equal to the value as determined from its group in the periodic table. The table of
multivalent elements that you have been given must be MEMORIZED!
Method 1: Stock/IUPAC/Roman Numeral Method
This is the currently preferred method as the valence of the first is indicated using the corresponding Roman Numeral in
brackets following the name of the first element.
Examples:
iron(III) chloride
FeCl3
tin(IV) iodide
SnI4
phosphorus (III) oxide
As2O3
mercury(II) oxide
HgO
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
iron (III) chloride
_____FeCl3_____
Pb3N2
_____lead (II) nitride_____________
tin (IV) oxide
_____SnO2_____
Cr3P2
_____chromium (II) phosphide____
phosphorus (V) chloride
_____PCl5______
NiI2
_____nickel (II) iodide___________
copper (I) bromide
_____CuBr_____
Co2Se3
_____cobalt (III) selenide_________
antimony (V) sulphide
_____Sb2S5_____
SnO2
_____tin (IV) oxide______________
arsenic (III) oxide
_____As2O3_____
CoF3
_____cobalt (III) fluoride_________
mercury (I) sulphide
_____Hg2S_____
AuN
_____gold (III) nitride____________
antimony (V) oxide
_____Sb2O5____
CuO
_____copper (II) oxide___________
mercury (II) phosphide
_____Hg3P2_____
PtO2
_____platinum (IV) oxide_________
arsenic (V) iodide
_____AsI5______
SnF4
_____tin (IV) fluoride____________
gold (I) telluride
_____Au2Te____
MnO
_____manganese (II) oxide_______
iron (III) oxide
_____Fe2O3____
P2O3
_____phosphorus (III) oxide______
bismuth (V) phosphide
_____Bi3P5_____
BiF3
_____bismuth (III) fluoride_______
mercury (II) chloride
_____HgCl2_____
PtI2
_____platinum (II) iodide_________
gold (III) chloride
_____AuCl3_____
Fel2
_____iron (II) iodide_____________
copper (II) sulphide
_____CuS______
As3P5
_____arsenic (V) phosphide_______
arsenic (III) oxide
_____As2O3_____
SnS
_____tin (II) sulfide______________
W2
SCH 3U- R.H.KING ACADEMY
Name:________________________
Method 2: Classical/"ous' and "ic" Method
This method can be used when the multivalent element has 2 possible valences. The name of the element ending with
"ous" denotes the lower valence value and the name of the element ending with an "ic" denotes the higher valence
values. In some cases, the Latin name for the element is used.
iron:
gold:
copper:
tin:
lead:
cobalt
nickel
mercury
platinum
ferrous
aurous
cuprous
stannous
plumbous
cobaltous
nickelous
mercurous
platinous
(valence = 2)
(valence = 1)
(valence = 1)
(valence = 2)
(valence = 2)
(valence = 2)
(valence = 2)
(valence = 1)
(valence = 2)
and
and
and
and
and
and
and
and
and
ferric
auric
cupric
stannic
plumbic
cobaltic
nickelic
mercuric
platinic
(valence = 3)
(valence = 3)
(valence = 2)
(valence = 4)
(valence = 4)
(valence = 3)
(valence = 3)
(valence = 2)
(valence = 4)
*Some elements having more than two valence values or oxidation states use specific values for the "ous" and the "ic".
nitrogen
manganese
arsenic
ous = 1 ic = 2
ous = 2 ic = 3
ous = 3 ic = 5
chromium
phosphorus
bismuth
ous = 2 ic = 3
ous = 3 ic = 5
ous = 3 ic = 5
Examples:
stannous chloride
arsenic phosphide
SnCl2
As3P5
phosphorous oxide
nitric oxide
P2O3
NO
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
ferric oxide
____Fe2O3______
CrI3
______chromic iodide____________
phosphoric sulfide
____P2S5_______
NiI2
______nickelous iodide___________
cuprous fluoride
____CuF_______
HgBr2
______mercuric bromide________
stannic fluoride
____SnF4_______
CoCl3
______cobaltic chloride___________
antimonous sulfide
____Sb2S3______
As3N5
______arsenic nitride_____________
arsenious bromide
____AsBr3______
Fe2C
______ferrous carbide____________
nickelic iodide
____NiI3_______
PbS
______plumbous sulphide_________
chromous oxide
____CrO_______
Bi2Se5
______bismuthic selenide_________
platinic nitride
____Pt3N4______
CuO
______cupric oxide_______________
auric iodide
____AuI3_______
Sb2S5
______antimonic sulfide__________
nitrous phoshpide
____N3P_______
As4C5
______arsenic carbide____________
stannic oxide
____SnO2______
Au2S
______aurous sulfide_____________
arsenious nitride
____AsN_______
PAs
______phosphorous arsenide______
mercuric fluoride
____HgF2______
NiP
______nickelic phosphide_________
cuprous nitride
____Cu3N______
CoF3
______cobaltic fluoride___________
auric chloride
____AuCl3______
CrS
______chromous sulphide________
cupric sulfide
____CuS_______
Au2Se3
______auric selenide_____________
W3
SCH 3U- R.H.KING ACADEMY
Name:________________________
Formula of Elements
Most elements are written as single entities.
Example:
iron Fe(S)
copper Cu(S)
helium He(g)
The exceptions to this rule are:
** These exceptions must be memorized! **
a) the diatomic gases: H O F Br I N Cl
hydrogen H2(g)
oxygen O2(g)
nitrogen N2(g)
chlorine Cl2(g)
b) two other non-metals:
fluorine F2(g)
bromine Br2(l)
sulphur S8(s)
iodine
I2(s)
phosphorus P4(s)
Common Radicals or Polyatomic Ions
Radicals or polyatomic ions are groups of atoms that are treated as a single entity when writing formulas and names.
The following list of common radicals (polyatomic ions) must be memorized along with their valences. Positive
polyatomic ions replace metals in an ionic compound and a negatively charged polyatomic ion goes in place of the nonmetal. If more than 1 of the radical is required in the chemical formula, brackets are placed around the radical’s
formula with the subscript outside the bracket.
Radical name
Formula (aq)
Valence
Radical name
Formula(aq)
Valence
hydroxide
OH-
1
ammonium
NH4+
1
permanganate
MnO4-
1
dichromate
Cr2O72-
2
cyanide
chromate
-
CN
CrO42-
1
2
cyanate
CNO
carbonate
CO32-
1
phosphate
PO43-
fluorate
FO3-
1
acetate
C2H3O2-
1
2
3
thiocyanate
-
SCN
1
nitrate
NO3-
1
sulfate
SO42-
2
chlorate
ClO3-
1
Examples:
sodium hydroxide
NaOH
potassium chromate
K2CrO4
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
potassium hydroxide
____KOH_______
Ga2(Cr2O7)3
_____gallium dichromate________
iron(III) cyanate
____Fe(CNO)3___
KCNO
_____potassium cyanate_________
barium hydroxide
____Ba(OH)2____
(NH4)2SO4
_____ammonium sulphate_______
ammonium chloride
____NH4Cl______
BaCO3
_____barium carbonate_________
copper(II) chromate
____CuCrO4_____
CuCr2O7
_____copper (II) dichromate______
ammonium dichromate
__(NH4)2Cr2O7___
Sn(CN)4
_tin (IV) cyanide or stannic cyanide_
ammonium chlorate
____NH4ClO3____
Fe(FO3)3
_iron (III) fluorate or ferric fluorate_
ferrous hydroxide
____Fe(OH)2____
Al(OH)3
_____aluminum hydroxide________
nickel(III) cyanide
____Ni(CN)3____
KMnO4
_____potassium permanganate____
auric bromide
____AuBr3_____
CsCN
_____cesium cyanide____________
cobalt(II) cyanate
____Co(CNO)2___
Fe(OH)2
iron (II) hydroxide or ferrous hydroxide
zinc hydroxide
____Zn(OH)2____
Ca(SCN)2
_____calcium thiocyanate________
W4
SCH 3U- R.H.KING ACADEMY
Practice!!
Name:________________________
This section has everything that has been covered so far.
calcium fluoride
_____CaF2_____
KOH
______potassium hydroxide______
aluminum iodide
_____AlI3______
MgF2
______magnesium fluoride_______
argon
_____Ar (g)_____
P4 (s)
______phosphorus______________
silver oxide
_____Ag2O_____
Sr(OH)2
______strontium hydroxide______
auric sulphide
_____Au2S3_____
CsCNO
______cesium cyanate___________
lithium phosphide
_____Li3P______
(NH4)3P
______ammonium phosphide_____
copper (I) oxide
_____Cu2O_____
Au2S3
_gold (III) sulfide or auric sulfide___
ammonium chromate
__(NH4)2CrO4___
Ca3As2
_______calcium arsenide_________
cuprous iodide
_____CuI_______
Ga2(CO3)3
_______gallium carbonate________
sulfur
_____S8 (s)______
LiSCN
_______lithium thiocyanate______
ferric chloride
_____FeCl3_____
PbF2
_lead (II) fluoride or plumbous fluoride_
hydrogen cyanide
_____HCN_____
MgCr2O7
_______magnesium dichromate___
stannic fluoride
_____SnF4_____
AgNO3
__________silver nitrate_________
copper (II) permanganate
__Cu(MnO4)2___
Zn(OH)2
________zinc hydroxide_________
lead (II) iodide
____PbI2_______
PtO2
_platinum (IV) oxide or platinic oxide_
calcium selenide
____CaSe______
Xe (g)
__________xenon gas___________
tin (II) sulfide
____SnS_______
Sb2O3
_anitmony (III) oxide or antimonic oxide_
stannous thiocyanate
__Sn(SCN)2_____
Ga2Se3
_______gallium selenide_________
cobalt (III) chloride
____CoCl3______
BeI2
_______beryllium iodide_________
plumbic sulfide
____PbS2______
Pt(SO4)2
mercury (I) cyanate
___Hg2(CNO)2__
Pb3N4
calcium nitride
____Ca3N2_____
Sn(MnO4)2 tin (II) permanganate or stannous permanganate
neon gas
____Ne (g)______
FeP
iron (III) hydroxide
____Fe(OH)3____
Na2O
_______sodium oxide___________
bromine
____Br2 (l)______
RbCNO
_______rubidium cyanate________
antimony (III) bromide
____SbBr3_____
Ni(FO3)2
_nickel (II) fluorate or nickelous fluorate_
potassium permanganate
____KMnO4____
CoN
_cobalt (III) nitride or cobaltic nitride_
barium oxide
____BaO_______
Cl2 (g)
_________chlorine gas __________
manganese (II) cyanide
___Mn(CN)2____
K2S
________potassium sulfide_______
cupric dichromate
___CuCr2O7_____
CrI3
_chromium (III) iodide or chromic iodide_
mercurous bromide
____Hg2Br2_____
Bi3N5
_bismuth (V) nitride or bismuthic nitride_
zinc phosphate
____Zn3(PO4)2___
Ba2C
________barium carbide_________
aluminum oxide
_____Al2O3_____
Fr2O
_______francium oxide__________
_platinum (IV) sulfate or platinic sulfate_
_lead (IV) nitride or plumbic nitride_
_iron (III) phosphide or ferric phosphide_
W5
SCH 3U- R.H.KING ACADEMY
Name:________________________
Acids
There are three groups of acids:
1. binary acids
2. oxy acids
3. derived oxy acids
1. Binary Acids
This is a very small but common group of acids. The following rules apply to all of the members.
1. All have the prefix “hydro” and end with “ic”.
2. All must contain hydrogen as the first element.
3. Use the normal cross-over-rule to determine the formula.
4. All are made by dissolving the gas in water and must be so indicated by using (aq) behind the formula.
5. Have no oxygen in their formula
Examples:
hydrochloric acid
HCl(aq)
hydrosulfuric acid
H2S(aq)
hydrocyanic acid
HCN(aq)
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
hydrobromic acid
__HBr(aq)__
hydrotelluric acid
___H2Te(aq)_
hydrofluoric acid
___ HF(aq)__
hydroiodic acid
__ HI(aq)___
hydroselenic acid
___ H2Se(aq)_
hydrosulfuric acid
___ H2S(aq)__
2. Oxy Acids
This is a larger group of acids. They are alike in that they all contain H, O and at least one other non-metal element. All
members of this group of acids follow the rules below.
1.
2.
3.
4.
The name of the acid ends in “ic”.
The name of the associated radical ends in “ate”.
The valence value of the associated radical is equal to the number of acidic hydrogens in the acid.
Since these acids are made by reacting a non-metal oxide with water, (aq) is not required but may be used.
The following 6 oxy acids and their associated radicals along with their valences must be memorized.
Name of the Acid
Formula of the Acid
Name of the
Formula of the
valence value for the
(aq)
associated radical
associated radical
associated radical
(aq)
acetic acid
nitric acid
HC2H3O2
HNO3
-
acetate
C2H3O2
1
nitrate
NO3-
1
1
fluoric acid
HFO3
fluorate
FO3-
carbonic acid
H2CO3
carbonate
CO32-
2
sulfate
SO42-
2
phosphate
PO43-
3
sulfuric acid
phosphoric acid
H2SO4
H3PO4
NOTE:
Using the periodic table it is possible to write the names and formulas for a number of other oxy acids using the fact
that members of the same chemical family have similar chemical properties. Elements of the same chemical family
(group) follow the pattern of the memorized oxy acid immediately above the element of interest.
Example:
memorized acid: fluoric acid = HFO3
therefore: chloric acid = HClO3
iodic acid = HIO3
bromic acid = HBrO3
If hydrogen is joined with the radicals learned earlier a few more acids can be formed.
chromate = CrO42-
chromic acid = H2CrO4
cyanate = CNO-
cyanic acid = HCNO
W6
SCH 3U- R.H.KING ACADEMY
Name:________________________
Exercise: Complete the following chart for the acids listed.
Name of the acid
Formula of the acid
Name of the
Formula of the
Valence value of
(aq)
associated radical
associated radical( aq)
the associated
radical
1
fluoric acid
HFO3
fluorate
FO31-
chloric acid
HClO3
chlorate
ClO3
1-
1
bromic acid
HBrO3
bromate
BrO31-
1
iodic acid
HIO3
iodate
IO31-
1
sulfuric acid
H2SO4
sulfate
SO42-
2
selenic acid
H2SeO4
selenate
SeO42-
2
telluric acid
H2TeO4
tellurate
TeO4
2-
2
chromic acid
H2CrO4
chromate
CrO42-
2
molybdenic acid
H2MoO4
molybdenate
MoO42-
2
tungstic acid
H2WO4
tungstate
WO42-
2
dichromic acid
H2Cr2O7
dichromate
Cr2O72-
2
manganic acid
HMnO3
manganate
MnO3-
1
cyanic acid
HCNO
cyanate
CNO1-
1
carbonic acid
H2CO3
carbonate
CO3
2-
2
silicic acid
H2SiO3
silicate
SiO3
2-
2
phosphoric acid
H3PO4
phosphate
PO43-
3
arsenic acid
H3AsO4
arsenate
AsO43-
3
3. Derived Oxy Acids
Theses acids are all derived from the parent oxy acids which you are to memorize. The table below shows the rule to
determine the derived oxy acids from the parent acid. When adding or removing oxygen atoms from the parent acid,
the number of hydrogens on the acid and the valence of the associated radical remain the same as the parent.
Parent Oxy Acid + 1 O
Parent Oxy Acid
Parent Oxy Acid - 1 O
Parent Oxy Acid - 2 O
Type of Acid
per______ic
ic
ous
hypo_____ous
Associated Radical
per______ate
ate
ite
hypo_____ite
Example
perchloric acid HClO4
perchlorate ion ClO4chloric acid HClO3
chlorate ion ClO3chlorous acid HClO2
chlorite ion ClO2
hypochlorous acid HClO
hypochlorite ion ClOW7
SCH 3U- R.H.KING ACADEMY
Name:________________________
Exercise: Complete the following chart for the acids listed.
Name of the acid
phosphoric acid
phosphorous acid
hypophosphorous acid
sulfuric acid
sulfurous acid
nitric acid
nitrous acid
perchloric acid
chloric acid
chlorous acid
hypochlorous acid
selenic acid
selenous acid
telluric acid
tellurous acid
permanganic acid
manganic acid
Formula of the acid
Name of the
Formula of the
Valence value of the
(aq)
associated radical
associated radical
associated radical
H3PO4
phosphate
(aq)
PO43-
3
H3PO3
phosphite
PO3
3-
3
H3PO2
hypophosphite
PO23-
3
H2SO4
sulfate
SO42-
2
H2SO3
sulfite
SO32-
2
HNO3
nitrate
NO31-
1
HNO2
nitrite
NO2
1-
1
HClO4
perchlorate
ClO41-
1
HClO3
chlorate
ClO31-
1
HClO2
chlorite
ClO21-
1
HClO
hypochlorite
ClO1-
1
H2SeO4
selenate
SeO42-
2
H2SeO3
selenite
SeO32-
2
H2TeO4
tellurate
TeO4
2-
2
H2TeO3
tellurite
TeO3
2-
2
HMnO4
permanganate
MnO41-
1
HMnO3
manganate
MnO3-
1
Salts
The word, salt, is the general term given to a class of compounds which can be formed when an acid and a base
neutralize each other. According to this definition then, most of the compounds dealt with in the section on binary
compounds could be considered to be salts formed from a base and a binary acid. In the same manner, salts are
formed from a base and an oxy acid or derived oxy acid.
Examples:
sodium sulphate
aluminum carbonate
cupric nitrite
Na2SO4
Al2(CO3)3
Cu(NO2)2
calcium phosphate
zinc perchlorate
stannous hypoiodite
Ca3(PO4)2
Zn(ClO4)2
Sn(IO)2
W8
SCH 3U- R.H.KING ACADEMY
Name:________________________
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
Salts from oxy acids
sodium nitrate
____NaNO3_____
Pb(WO4)2
_lead (IV) tungstate or plumbic tungstate_
iron(III) acetate
___Fe(C2H3O2)3__
NaClO3
______sodium chlorate__________
aluminum silicate
___Al2(SiO3)3____
GaAsO4
______gallium arsenate__________
magnesium phosphate
___Mg3(PO4)2___
CaSeO4
______calcium selenate__________
aurous sulfate
___Au2SO4_____
Mg3(AsO4)2
______magnesium arsenate______
ammonium chlorate
___NH4ClO3_____
K2CO3
______potassium carbonate______
zinc nitrate
___Zn(NO3)2____
Na3PO4
______sodium phosphate________
potassium acetate
___KC2H3O2_____
CuSiO3
_copper (II) silicate or cupric silicate_
lithium chromate
___Li2CrO4_____
Pb(CrO4)2
calcium tungstate
___CaWO4_____
Fe(ClO3)2
ferric sulfate
___Fe2(SO4)3____
Cr(BrO3)2 _chromium (II) bromate or chromic bromate_
gold (I) phosphate
___Au3PO4_____
Al(C2H3O2)3
______aluminum acetate_________
magnesium chlorate
___Mg(ClO3)2___
SnTeO4
_tin (II) tellurate or stannous tellurate_
ammonium nitrate
___NH4NO3____
NH4IO3
_______ammonium iodate_______
lithium molybdenate
___Li2MoO4____
Zn3(PO4)2
_______zinc phosphate__________
aluminum sulfite
___Al2(SO3)3____
CaSeO3
______calcium selenite__________
cobalt(III) chlorite
___Co(ClO2)3____
Na2CO2
______sodium carbonite_________
tin(IV) hypochlorite
___Sn(ClO)4____
Ba(IO2)2
______barium iodite____________
sodium phosphite
___Na3PO3_____
Ni2(TeO2)3
_nickel (III) hypotellurite
aluminum nitrite
___Al(NO2)3____
NaBrO
_______sodium hypobromite_____
cobalt(II) hypophosphite
__Co3(PO2)2____
LiNO2
_______lithium nitrite___________
stannic perchlorate
__Sn(ClO4)4_____
Au(NO2)3
_gold (III) nitrite or auric nitrite____
sodium sulphite
___Na2SO3_____
NH4ClO4
______ammonium perchlorate____
aluminum chlorite
___Al(ClO2)3____
Ga(BrO4)3
______gallium perbromate_______
nickel(III) hypochlorite
___Ni(ClO)3____
Pt(ClO)4 _platinum (IV) hypochlorite or platinic hypochlorite_
tin(IV) phosphite
___Sn3(PO3)4___
Zn(MnO4)2
_______zinc permanganate__________
copper(I) permanganate
___CuMnO4____
Ag2SO2
_______silver hyposulphite_______
ammonium hypophosphite
___(NH4)3PO2_____
FeWO2 iron (II) hypotungstite or ferrous hypotungstite
mercuric perchlorate
___Hg(ClO4)2____
K2MnO4
_______potassium manganate____
magnesium sulfite
___MgSO3_____
(NH4)3PO2
___ammonium hypophosphite____
_lead (IV) chromate or plumbic chromate_
_iron (II) chlorite or ferrous chlorite_
Salts from Derived Oxy Acids
W9
SCH 3U- R.H.KING ACADEMY
Practice!!
Name:________________________
This section has everything that has been covered so far.
calcium fluoride
_____CaF2______
BaSiO3
______barium silicate____________
aluminum hydroxide
____Al(OH)3_____
Ni3N2
______ nickel (II) nitride __________
sulfuric acid
____H2SO4______
H2Se (aq)
______hydroselenic acid__________
chromium (II) iodite
____Cr(IO2)2_____
Na3PO4
______sodium phosphate_________
stannous fluoride
____SnF2_______
Sn3P4
ammonium hypobromite
____NH4BrO____
NH4OH
______ammonium hydroxide______
aurous cyanide
____AuCN______
AgNO3
_______silver nitrate____________
mercury (II) sulfite
____HgSO3_____
Mg(MnO4)2
_______magnesium permanganate___
manganic oxide
____Mn2O3_____
CaClO2
_______calcium chlorite_________
hydrofluoric acid
____HF (aq)______
Sr(IO3)2
_______strontium idodate________
carbonic acid
____H2CO3______
BeSeO3
_______beryllium selenite________
calcium sulfate
____CaSO4______
S8 (s)
__________sulfur solid___________
zinc hydroxide
____Zn(OH)2____
PbS2
_lead (IV) sulfide or plumbic sulfide_
strontium dichromate
____SrCr2O7____
Fe(MnO4)2 iron (II) permanganate or ferrous permanganate
lithium hypoiodite
____LiIO_______
SrCrO4
_______strontium chromate______
magnesium silicate
____MgSiO3____
P4 (s)
________phosphorus solid_______
zinc phosphide
____Zn3P2______
Zn3(PO4)2
_______zinc phosphate__________
barium hydride
____BaH2_______
H2 (g)
_________hydrogen gas_________
potassium permanganate
____KMnO4_____
CaCO3
_______calcium carbonate_______
sodium chromate
____Na2CrO4____
SbBr3 _antimony (III) bromide or antimonous bromide_
plumbic cyanate
____Pb(CNO)4___
AgIO
_______silver hypoiodite_________
lead (IV) thiocyanate
____Pb(SCN)4___
SnO2
___tin (IV) oxide or stannic oxide__
potassium cyanide
____KCN_______
H3PO2 (aq)
_____hypophosphorous acid______
sodium nitrite
____NaNO2_____
PbWO4
fluorine
____F2 (g)_______
H2S (aq)
cobalt (II) sulfite
____CoSO3______
Mg(NO2)2
plumbic chromite
____Pb(CrO3)2___
H2SeO3
zinc hypophosphite
____Zn3(PO2)2___
AlAsO2
_____aluminum hypoarsenite_____
nitrous acid
____HNO2 (aq)____
N2 (g)
_______nitrogen gas____________
_tin (IV) phosphide or stannic phosphide_
_lead (II) tungstate or plumbous tungstate_
_______hydrosulphuric acid______
(aq)
_______magnesium nitrite___
_______selenous acid___________
W10
SCH 3U- R.H.KING ACADEMY
Name:________________________
Acid Radicals and Acid Salts
1. Acid Radicals
In certain circumstances the oxy acids with multiple acidic hydrogens are able to lose the hydrogens one at a time. This
results in radicals with acidic hydrogens still attached which are referred to as acid radicals.
Step 1: H3PO4 (aq) H+ (aq)+ H2PO4-(aq)
Step 2: H2PO4-(aq)  H+ (aq)+ HPO42-(aq)
Step 3: HPO42- (aq) H+(aq) + PO43-(aq)
Radical
3PO4 (aq)
HPO42-(aq)
H2PO4-(aq)
Name
Phosphate
monohydrogenphosphate
dihydrogenphosphate
Valence
3
2
1
Notes:
a) valence = # of hydrogen removed from the acid OR valence of non-acid radical-# of H’s still attached
b) mono may be left off a monohydrogen acid radical
c) for oxy acids with 2 acidic hydrogens (diprotic acids), the prefix “bi” may be used in place of monohydrogen
(eg. HCO3- can be named as bicarbonate or monohydrogen carbonate)
Exercise:
For the following give the formula and valence value of the radicals listed: All radicals are aqueous
3-
phosphite
___PO3 ____
monohydrogenphosphite
2___HPO3 ___
dihydrogenphosphite
2-
sulphate
____SO4 ___
__2__
__2__
monohydrogensulphate
1___HSO4 ___
__1__
__H2PO3 ___
__1__
carbonate
____CO3 ___
arsenate
___AsO43-___
__3__
monohydrogencarbonate
___HCO31-___ __1__
monohydrogenarsenate
__ HAsO42-__
__2__
chromate
___CrO42-___
__2__
dihydrogenarsenate
__H2AsO41-__
__1__
monohydrogechromate
___HCrO41-__
__1__
aluminum bisulphite
sodium hydrogensulfate
Al(HSO3)3
NaHSO4
1-
__3__
2-
__2__
2. Acid Salts
The acid radicals are treated just like any other radical.
Examples:
calcium dihydrogenhypophosphite
potassium monohydrogen carbonate
Ca(H2PO2)2
KHCO3
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
sodium monohydrogenphosphate
___Na2HPO4___
Li2HPO3
magnesium dihydrogenphosphate
__Mg(H2PO4)2__
Ni(HSiO3)2
aluminum dihydrogenphosphite
___Al(H2PO3)3__
CaHPO2
_calcium hydrogenhypophosphite__
chromium(III) hydrogenphosphite
__Cr2(HPO3)3___
KH2AsO3
__potassium dihydrogenarsenite__
cupric monohydrogenarsenate
__CuHAsO4____
Ba(HCrO4)2 barium hydrogenchromate or barium bichromate
stannic dihydrogenhypophosphite
__Sn(H2PO2)4___
BeHPO3
potassium monohydrogenselenite
___KHSeO3____
Pb(HSeO4)2
ferric monohydrogensulphate
__Fe(HSO4)3___
bisulfate
ammonium bicarbonate
__NH4HCO3____
Cr(HSO3)3 chromium (III) bisulfite or chromic hydrogensulfite
Sn(HCO2)2 tin(II) hydrogencarbonite or stannous bicarbonite
___lithium hydrogenphosphite_____
nickel (II) bisilicate or nickelous hydrogensilicate
___beryllium hydrogenphosphite___
lead (II) hydrogenselenate or plumbous
W11
SCH 3U- R.H.KING ACADEMY
Name:________________________
Hydrates
Hydrates are crystals containing a given number of water molecules within their structure. When naming a hydrate
Greek prefixes in front of the word hydrate are used to indicate the number of water molecules into the crystal. In the
chemical formula the number of water molecules is separated from the formula of the compound by a dot “∙”
Examples:
copper(II) sulfate pentahydrate
CuSO4 ∙ 5 H2O
chlorine octahydrate
Cl2 ∙ 8 H2O
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
calcium sulfate dihydrate
______________
Al(NO3)3 ∙ 2 H2O
_aluminum nitrate dihydrate_
magnesium sulfite heptahydrate
______________
Br2 ∙ 10 H2O
____bromine decahydrate_____
sodium carbonate decahydrate
______________
Cu(BrO3)2 ∙ 6 H2O copper (II) bromate hexahydrate or “ic”
aluminum oxide monohydrate
______________
CoCl2 ∙ 3 H2O
_cobalt (II) chloride trihydrate or “ous”_
ferric chloride hexahydrate
______________
CaCl2 ∙ 2 H2O
__calcium chloride dihydrate___
calcium nitrate trihydrate
______________
Pb(C2H3O2)2 ∙ 3 H2O _lead (II) acetate trihydrate or “ous”_
cadmium bromide tetrahydrate
______________
AlCl3 ∙ 6 H2O
_aluminum chloride hexahydrate_
chromium(III) nitrate nonahydrate
______________
ZnCl2 ∙ 6 H2O
___zinc chloride hexahydrate__
cobalt(II) perchlorate pentahydrate
______________
I2 ∙ 4 H2O
___iodine tetrahydrate____
barium chloride dihydrate
______________
Na2SO4 ∙ 10 H2O
__sodium sulfate decahydrate__
Peroxides
These are binary oxides, which contain an extra oxygen atom.
Rules:
1. Write the formula of the regular oxide.
2. Add on one extra oxygen atom.
3. Do not at this stage cancel any of the subscripts.
Na2O
Na2O2
H2O
H2O2
CaO
CaO2
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
zinc peroxide
____ZnO2______
PbO3
_lead (IV) peroxide or plumbic peroxide_
calcium peroxide
____CaO2______
Ga2O4
______gallium peroxide__________
cesium peroxide
___Cs2O2_______
Cu2O2
_copper (I) peroxide or cuprous peroxide_
copper(II) peroxide
___CuO2_______
PtO3
magnesium peroxide
___MgO2________
BeO2
________beryllium peroxide______
potassium peroxide
____K2O2________
Ag2O2
______silver peroxide____________
strontium peroxide
____SrO2_______
ZnO2
______zinc peroxide_____________
hydrogen peroxide
____H2O2_______
CrO2
barium peroxide
____BaO2_______
Au2O2
_gold (I) peroxide or aurous peroxide_
aluminum peroxide
____Al2O4_______
SnO3
_tin (IV) peroxide or stannous peroxide_
_platinum (IV) peroxide or platinic peroxide_
_chromium (II) peroxide or chromous peroxide_
W12
SCH 3U- R.H.KING ACADEMY
Name:________________________
Thio Compounds
The prefix “thio” in the name indicates that an oxygen atom has been replaced by a sulphur atom.
Examples:
potassium sulphate
sodium carbonate
potassium cyanate
K2SO4
Na2CO3
KCNO
potassium thiosulphate
sodium thiocarbonate
potassium thiocyanate
K2S2O3
Na2SCO2
KSCN
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
ammonium thiocyanate
____NH4CNO____
BaHSPO
__barium thiohypophosphite______
sodium hydrogenthiosulphate ____NaHS2O3____
CoS2O3 ∙ 8 H2O cobalt (II) thiosulfate octahydrate or “ous”
potassium thiosulfate
____K2S2O3______
BeSTeO2
aluminum thiocarbonate
____Al2(SCO2)3___
PbS2O2
_lead(II) thiosulfite or plumbous thiosulfite_
magnesium thiohypophophite ____Mg3(SPO)2___
Ag3SPO2
____silver thiophosphite_________
ammonium thiophosphate
___(NH4)3SPO3___
CuHSCO
_copper (I) bithiocarbonite or “ous”_
tin(II) thiobromate
___Sn(SBrO2)2___
CaS2O2
______calcium thiosulfite________
chromic thioselenite
__Cr2(SSeO2)3____
CsHSSeO2
_cesium hydrogenthioselenite or “bi”_
zinc thioarsenate
__Zn2(SAsO3)2___
AlSPO3
____aluminum thiophosphate____
Practice!!
___beryllium thiotellurite_________
This section has everything that has been covered so far.
sodium chloride
_____NaCl_____
CaF2
______calcium fluoride__________
silver chlorate
_____AgClO3____
H3PO4
______phosphoric acid__________
calcium perbromate
____Ca(BrO4)2___
Ag2O
______silver oxide______________
barium phosphide
______Ba3P2____
NaIO3
______sodium iodate____________
nickel (II) cyanide
_____Ni(CN)2____
ZnCO3
______zinc carbonate____________
cesium peroxide
_____Cs2O2_____
NH4OH
______ammonium hydroxide______
beryllium phosphate
____Be3(PO4)2___
Ca3(PO2)2
______calcium phosphite_________
zinc sulfite
____ZnSO3_____
HI (aq)
______hydroiodic acid_________
calcium thiocarbonate
____CaSCO2____
Pb(OH)2
cesium bromide
_____CsBr______
Hg(ClO2)2
iodine monohydrate
____I2 · H2O_____
SnO
_tin (II) oxide or stannous oxide_
stannic carbide
_____SnC2______
As2O5
_arsenic (V) oxide or arsenic oxide_
mercuric hydroxide
_____Hg(OH)2___
Fe2(HPO4)3
_iron(III) hydrogenphosphate or “ic”_
potassium bisulfate
_____KHSO4____
NaBrO
___sodium hypobromite__________
hypocarbonous acid
____H2CO2 (aq)___
Zn(IO)2
____zinc hypoiodite______________
cupric perchlorate
___Cu(ClO4)2____
SnCl4
_tin (IV) chloride or stannic chloride_
gold (III) selenite
___Au2(SeO3)2___
MgSeO3
_____magnesium selenite_________
stannous phosphide
____Sn3P2______
Cd(BrO2)2
____cadmium bromite___________
antimony (V) oxide
____Sb2O5______
HNO2 (aq)
______nitrous acid______________
_lead (II) hydroxide or plumbous hydroxide_
_mecury (II) chlorite or mercuric chlorite_
W13
SCH 3U- R.H.KING ACADEMY
Name:________________________
hydroiodic acid
_____HI (aq)______
S8 (s)
___________sulfur solid__________
cupric dihydrogenphosphite
___Cu(H2PO3)2____
BaCl2 ∙ 3 H2O
_____barium chloride trihydrate___
cupric sulfate pentahydrate
__CuSO4 · 5 H2O__
H2CrO4
_______chromic acid____________
zinc monohydrogentellurite
___Zn(HTeO3)2____
Sn3(AsO2)4
_tin (IV) arsenite or stannis arsenite_
hydrocyanic acid
_____HCN (aq)_____
CoI3 ∙ 10 H2O
_cobalt (III) iodide decahydrate or “ic”_
lithium hypofluorite
______LiFO______
ZnCO3
________zinc carbonate__________
magnesium silicate
_____MgSiO3____
KBr
_______potassium bromide_______
potassium sulfide
______K2S______
(NH4)2SO3
______ammonium sulphite_______
hydrofluoric acid
_____HF(aq)______
CsH
______cesium hydride___________
lithium hydrogensulfate
_____LiHSO4_____
NiBr2
_nickel (II) bromide or nickelous bromide_
magnesium hypochlorite
____Mg(ClO)2____
KMnO4
______potassium permanganate_____
calcium peroxide
_____CaO2______
Al2(TeO2)3
_____aluminum hypotellurite _____
sodium bicarbonate
____NaHCO3____
HFO
_____hypoflourous acid__________
manganese (III) oxide
_____Mn2O3____
Ga(OH)3
______gallium hydroxide_________
potassium oxide
_____K2O______
Ba3(PO3)2
______barium phosphite_________
barium sulfide
_____BaS______
KBrO4
_____potassium perbromate______
magnesium fluoride heptahydrate _MgF2 · H2O__
Pb(C2H3O2)4
_lead (IV) acetate or plumbic acetate_
dichromic acid
___H2Cr2O7 (aq)__
P4 (s)
________phosphorus solid________
mercurous thiobromite
___Hg2(SBrO)2__
H2S
______hydrogen sulfide__________
zinc hydride dihydrate
__ZnH2 · 2 H2O__
HNO3
___________nitric acid___________
perchloric acid
____HClO4 (aq)__
Mg3N2
_______magnesium nitride_______
strontium chloride
_____SrCl2______
Na2S2O2
______sodium thiosulfite_________
silver sulfide
_____Ag2S______
NiN
_nickel (III) nitride or nickelic nitride_
ferric thiosulfite
_____FeS2O2____
Br2 (l)
_________bromine liquid_________
chlorous acid
____HClO2_____
LiNO2
__________lithium nitrite_________
argon gas
_____Ar (g)______
HC2H3O2
_________acetic acid____________
nickelic bicarbonite
___Ni(HCO2)3____
SrH2 ∙ 6 H2O
__strontium hydride hexahydrate__
lead (IV) nitride
_____Pb3N4_____
AgNO3
_________silver nitrate_________
cupric chloride trihydrate
__CuCl2 · 3 H2O__
BaSiO3
________barium silicate_________
sulfurous acid
____H2SO3 (aq)___
CoO
_cobalt (II) oxide or cobaltous oxide_
aluminum nitride
_____AlN______
(NH4)2CrO4
________ammonium chromate____
stannous hypoiodite
____Sn(IO)2_____
H2MnO4 (aq)
________manganic acid________
lead (II) bicarbonite
___Pb(HCO2)2____
Au2(HAsO3)3
_gold (III) hydrogenarsenite or “ic”_
chromium (III) bisulfite
___Cr(HSO3)3____
ZnSSiO2
________zinc thiosilicite_________
platinic peroxide
______PtO3_____
KOH
_______potassium hydroxide______
W14
SCH 3U- R.H.KING ACADEMY
Name:________________________
Molecular Compounds
These compounds contain 2 non-metals and are named using Greek prefixes. This method does not use the valence
values. The Greek prefix is placed in front of the element name to indicate how many atoms of the element to place in
the formula. If there is only 1 atom of the first element, mono is not used on the name of the first element.
Prefixes
1 = mono
2 = di
3 = tri
4 = tetra
5 = penta
6 = hexa
7 = hepta
8 = octa
9 = nona
10 = deca
Examples:
diphosphorus pentoxide
carbon monoxide
P2O5
CO
arsenic trichloride
xenon tetrafluoride
AsCl3
XeF4
Exercise: For all exercises give the name if the formula is provided and the formula if the name is provided.
xenon hexafluoride
____XeF6______
CF4
_______carbon tetrafluoride_____
sulfur dioxide
_____SO2______
AsH3
________arsenic trihydride_______
sulphur trioxide
_____SO3______
PBr3
_____phosphorus tribromide_____
carbon dioxide
_____CO2______
B2Si
______diboron monosilicide______
carbon disulphide
_____CS2_______
NF3
________nitrogen trifluoride_____
diphosphorus trisulfide
____P2S3_______
Si2Br6
______disilicon hexabromide_____
silicon dioxide
____SiO2_______
AsI5
________arsenic pentaiodide_____
carbon tetrachloride
____CCl4_______
C2H6
_______dicarbon hexahydride____
tellurium dioxide
____TeO2______
SI6
________sulphur hexaiodide______
sulfur dioxide
____SO2_______
XeCl4
_______xenon tetrachloride______
nitrogen dioxide
____NO2_______
TeO2
________tellurium dioxide_______
nitrogen tetroxide
____N2O4______
PI5
____phosphorus pentaiodide_____
selenium dibromide
____SeBr2______
CS2
_________carbon disulphide______
carbon tetrabromide
____CBr4_______
KrF2
_________krypton difluoride______
dinitrogen monoxide
____N2O_______
N2O3
________dinitrogen trioxide______
bromine trifluoride
____BrF3_______
ICl
______iodine monochloride______
dichlorine monoxide
____ClO2_______
SeCl2
_______selenium dichloride______
dinitrogen tetrafluoride
____N2F4_______
ICl7
______iodine heptachloride______
diarsenic triselenide
____As2Se3_____
NF3
______nitrogen trifluoride_______
diphosphorus pentasulphide
____P2S5_______
P4S5
___tetraphosphorus pentasulfide__
hexaboron monosilicide
____B6Si_______
N2O5
_______dinitrogen pentoxide_____
dioxygen difluoride
____O2F2_______
P2O3
_____diphosphorus trioxide______
sulfur dichloride
____SCl2_______
C3H8
______tricarbon octahydrate_____
ditellurium monocarbide
____Te2C_______
P2Se5
___diphosphorus pentaselenide___
dinitrogen tetrahydride
____N2H4_______
TeO
_______tellurium monoxide______
W15
SCH 3U- R.H.KING ACADEMY
Name:________________________
PRACTICE, PRACTICE, PRACTICE This section contains everything covered in this unit.
sulphur
_____S8 (s)_______
PbS2O2
_lead (II) thiosulfite or plumbous thiosulfite_
plumbous peroxide
_____PbO2______
MgO2
________magnesium peroxide_____
calcium iodite
____Ca(IO2)2_____
Al2(SO2)3
_____aluminum hyposulfite_______
sulfur dioxide
_____SO2_______
Au(MnO4)3
gallium hypoarsenite
____GaAsO2_____
BrCl5
______bromine pentachloride_____
neon
______Ne (g)_____
Ba(FO)2
______barium hypofluorite_______
platinum (IV) thiocarbonite
____PtSCO______
ZnHAsO4
____zinc hydrogenperarsenate____
calcium cyanide heptahydrate __CaCN · 7 H2O__
Co(NO3)3
_cobalt (III) nitrite or cobaltic nitrite_
cuprous permanganate
____CoMnO4____
HgSCO
_mercury (II) thiocarbonite or “ic”_
chromous acid
____H2CrO4_____
H2S (aq)
_________hydrosulfuric acid______
cyanic acid
____HCNO______
SrCl2∙8 H2O
__strontium chloride octahydrate__
iodine monochloride
_____ICl________
MnP
_manganese (III) phosphide or “ic”_
_gold (III) permanganate or auric permanganate_
stannic dihydrogen hypophosphite_Sn(H2PO2)4___
Cr(H2PO3)3 chromium (III) dihydrogenphosphite or “ic”
auric peroxide
_____Au2O4_____
K2O2
_______potassium peroxide_______
ammonium selenide
____(NH4)2Se____
Al(ClO4)3
______aluminum perchlorate_____
titanium
______Ti (s)______
Ga2(SiO3)3
______gallium silicate____________
ferrous thiosilicate
____FeSSiO2_____
P2S3
______diphosphorus trisulfide_____
cadmium bisulphate
___Cd(HSO4)2____
HNO3 (aq)
___________nitric acid___________
lithium phosphide
_____Li3P_______
FeCr2O7
bromine
_____Br2 (l)______
CuSO4∙5H2O
potassium oxide
_____K2O_______
H2SeO3 (aq)
__________selenous acid________
barium sulfide
_____BaS_______
CaCr2O7
_________calcium dichromate_____
magnesium fluoride
_____MgF2______
P2O5
_____diphosphorus pentoxide_____
mercurous bromide
____Hg2Br2______
Cr(BrO)2
_chromium (II) hypobromite or “ous”_
zinc hydride
____ZnH2_______
MgO2
_______magnesium peroxide______
ferric sulfide
____Fe2S3_______
Al2O4
________aluminum peroxide______
arsenic (V) oxide
____As2O5______
HI (aq)
_________hydroiodic acid________
lead (IV) nitride
____Pb2N4______
Au2(HAsO3)3 · 9 H2O gold(III) hydrogenarsenite nonahydrate or “ic”
cupric chloride
____CuCl2______
SO3
__________sulfur trioxide________
stannous iodide
____SnI2_______
Li2SCO2
______lithium thiocarbonite______
aluminum nitride
____AlN________
Sr3N2 · 3 H2O
____strontium nitride trihydrate___
antimonous bromide
____SbBr3______
(NH4)2SiO2
______ammonium silicite________
tin (IV) sulfide
____SnS2_______
H2Te (aq)
______hydrotelluric acid_________
_iron (II) dichromate or ferrous dichromate_
_copper (II) sulfate pentahydrate or “ic”_
W16
SCH 3U- R.H.KING ACADEMY
Name:________________________
silver oxide
_____Ag2O______
P2O5
_____diphosphorus pentoxide___
calcium phosphide
_____Ca3P2______
Sn(SO4)2
_tin (IV) sulfate or stannic sulfate__
iron (II) sulfide
_____FeS_______
FePO4
arsenic phosphide
_____AsP_______
K3N
________potassium nitride_______
mercury (II) nitride
_____Hg3N2_____
SO2
________sulfur dioxide___________
tin (IV) fluoride
_____SnF4______
CuOH
sodium hydride
_____NaH______
Zn(NO2)2
_________zinc nitrite____________
sodium monohydrogenphosphate __Na2HPO4___
Au2S3
_gold (III) sulfide or auric sulfide_
barium hydroxide
____Ba(OH)2____
NaOH
_______sodium hydroxide_______
sodium bicarbonate
_____NaHCO3___
H2SO3
________sulfurous acid__________
perchloric acid
_____HClO4 (aq)__
H2S
_______hydrogen sulfide_________
nitrous acid
_____HNO2_____
H3PO4
_______phosphoric acid________
strontium peroxide
______SrO2_____
NH3
_nitrogen trihydride or ammonia_
plumbous oxide
______PbO_____
HCN
_________hydrogen cyanide______
potassium chloride
______KCl______
Ca(OH)2
_______calcium hydroxide________
hydrogen iodide
______HI_______
Fe(OH)3
_iron (III) hydroxide or ferric hydroxide_
antimonous phosphide
_____SbP______
H3P
__trihydrogen monophosphide____
silver sulfide
_____Ag2S______
Na2CO3
_______sodium carbonate________
mercuric oxide
_____HgO______
P2O5
______diphosphorus pentoxide____
phosphorus (III) chloride
_____PCl3______
CH4
______carbon tetrahydride_______
ferrous oxide
_____FeO______
FeSO4
_iron (II) sulfide or ferrous sulfide_
magnesium tellurite
___MgTeO3_____
SiO2
_________silicon dioxide________
zinc chromate dihydrate
_ZnCrO4 · 2 H2O_
GaCl3
_________gallium chloride_______
phosphorous acid
____H3PO3_____
CoBr2
_cobalt (II) bromide or cobaltous bromide_
chromic cyanide
____Cr(CN)3____
B2H4
_________diboron tetrahydride___
sodium thiosulfate hexahydrate _NaS2O3 · 6 H2O_
CO
_______carbon monoxide________
iron (III) carbonate
___Fe2(CO3)3____
P4 (s)
_______phosphorus solid__________
magnesium phosphide
____Mg3P2_____
NH4Cl
______ammonium chloride________
fluorine
_____F2 (g)______
Al2O3
______aluminum oxide___________
chlorous acid
____HClO2_____
KBr
______potassium bromide________
dicarbon tetrahydride
_____C2H4______
Li2S
______lithium sulfide____________
hydrosulfuric acid
____H2S (aq)_____
SnI2
_tin (II) iodide or stannous iodide__
stannous tungstate
____SnWO4_____
SnCl4
_tin (IV) chloride or stannic chloride_
calcium peroxide
_____CaO2______
Cu2O
_copper (I) oxide or cuprous oxide__
CuSO4
_copper (II) sulphate or cupric sulfate_
ammonium hydrogenhypophosphite _(NH4)2HPO2_
_iron (III) phosphate or ferric phosphate_
_copper (I) hydroxide or cuprous hydroxide_
W17
SCH 3U- R.H.KING ACADEMY
Name:________________________
tetracarbon decahydride
____C4H10______
Ag2Se
_________silver selenide_________
nickelic perbromate
____Ni(BrO4)3___
Fe(OH)2
chlorine dihydrate
___Cl2 · 2 H2O___
N2O4
_______dinitrogen tetroxide______
copper (II) hypoarsenite
___Cu3(AsO2)2___
K2S2O
____potassium thihyposulfite_____
dichromic acid
___H2Cr2O7 (aq)___
HMnO4 (aq)
______permanganic acid_________
aurous hydroxide
_____AuOH_____
H2SiO3 (aq)
__________silicic acid___________
barium bithiocarbonate
___Ba(HSCO2)2__
CaS2O2
_______calcium thiosulphite______
hydrogen chloride
______HCl______
N2S4
______dinitrogen tetrasulfide_____
sulfuric acid
_____H2SO4_____
Au(IO4)3
_gold (III) periodate or auric periodate_
chromous cyanate
___Cr(CNO)2____
PbO3
_lead (IV) peroxide or plumbic peroxide_
magnesium thiophosphate
___Mg3(SPO3)2__
MgMnO4
_____magnesium manganate_____
ferrous iodide
______FeI2_____
H2S (aq)
_________hydrosulfuric acid______
barium dichromate
____BaCr2O7____
Fe(H2PO3)3
_iron (III) dihydrogenphosphite or “ic”_
phosphorus
_____P4 (s)______
PCl5
____phosphorus pentachloride____
periodic acid
____HIO4 (aq)____
Rb2SSiO2
_______rubidium thiosilicate______
tetraphosphorus decaoxide
____P4O10______
Ra3P2 · 7 H2O
_radium phosphide heptahydrate__
hydrotelluric acid
____H2Te (aq)____
NH4OH
_______ammonium hydroxide_____
ammonium bitungstate
___NH4HWO4___
HCN (aq)
_______hydrocyanic acid_________
iron (III) peroxide
_____Fe2O4_____
Ni3(SPO2)2 nickel (III) thiophosphite or nickelic thiophosphite
neon
_____Ne (g)______
HTeO2 (aq)
silver hypoarsenite
____Ag3AsO2____
Cu2Se
_iron (II) hydroxide or ferrous hydroxide_
________hypotellurous acid_______
_copper (I) selenide or cuprous selenide_
copper (II) sulphate pentahydrate _CuSO4 · 5 H2O_
Ga(OH)3
________gallium hydroxide_______
cyanic acid
_____HCNO_____
B2H6
_______diboron hexahydride______
sulfur dioxide
_____SO2_______
BaF2
_________barium fluoride________
potassium permanganate
____KMnO4_____
H2CrO3 (aq)
_________chromous acid_________
zinc chloride
_____ZnCl2______
Pb(ClO)2
diarsenic pentasulfide
_____As2S5______
H2Se(aq)
_________hydroselenic acid_______
hypophosphorous acid
____H3PO2 (aq)____
CaMoO4
_______calcium molybdenate_____
potassium hydroxide
_____KOH______
C4H8
_____tetracarbon octahydride_____
iron (III) cyanate
____Fe(CNO)3___
ZnSeO2
_________zinc hyposelenite_______
barium chromate
____BaCrO4_____
BaF2
________barium fluoride_________
ammonium thiocyanate
____NH4SCN____
H2Te(aq)
______hydrotelluric acid_________
potassium dichromate
____K2Cr2O7_____
Co2(HPO3)3∙4 H2O cobalt (III) hydrogenphosphite tetrahydrate or “ic”
mercuric tellurite
____HgTeO3_____
NaBr
_________sodium bromide_______
platinum (IV) silicate
____Pt(SiO3)2____
Ca(C2H3O2)2
_________calcium acetate________
_lead (II) hypochlorite or plumbous hypochlorite_
W18
SCH 3U- R.H.KING ACADEMY
Name:________________________
cobaltous thioselenite
__Co2(SSeO2)3___
NaCl
_______sodium chloride__________
tricarbon octahydride
______C3H8_____
K2SO4
______potassium sulphate________
thiocyanic acid
____HSCN (aq)____
Na2CrO4
______sodium chromate_________
silver hypophosphite
____Ag3PO2_____
H2S (aq)
_______hydrosulfuric acid________
bromine
_____Br2 (l)______
MgTeO3
_______magnesium tellurite______
silicon tetrahydride
_____SiH4_______
Li2CO2
_______lithium carbonite________
cesium arsenite dihydrate
__Cs2AsO3 · 2 H2O_
Cu(NO3)2
_copper (II) nitrate or cupric nitrate_
manganic hydroxide
____Mn(OH)3___
Fe(ClO4)2 _iron (II) perchlorate or ferrous perchlorate_
arsenious oxide
_____As2O3_____
BaHPO3
____barium hydrogenphosphite____
silver chlorate
_____AgClO3____
AgBrO
______silver hypobromite_________
calcium perbromate
___Ca(BrO4)2____
Cr(NO2)3
barium phosphide
_____Ba3P2_____
SnCO3 ∙ 4 H2O _tin (II) carbonate tetrahydrate or “ous”_
nickel (II) cyanide
____Ni(CN)2_____
BaS3O2
______barium dithiosulfate_______
beryllium phosphate
___Be3(PO4)2____
SrO2
_______strontium peroxide_______
cadmium sulfite
______CdS_____
As2O5
________diarsenic pentoxide______
boron tribromide
______BBr3_____
H2CrO4 (aq)
_______chromic acid____________
silicon carbide
______SiC______
AgFO2
__________silver fluorite_________
mercuric hydroxide
____Hg(OH)2____
AuI3
___gold (III) iodide or auric iodide__
cupric perchlorate
____Cu(ClO4)2___
Ni2O4
gold (III) selenate
___Au2(SeO4)3___
Na2HAsO2
_____sodium hydrogenarsenite____
stannic phosphide
_____Sn3P4_____
SiO2
_________silicon dioxide_________
arsenic (V) oxide
_____As2O5_____
Ca (s)
_________calcium solid__________
sulfur trioxide
_____SO3_______
Rb2Cr2O7
_______rubidium dichromate_____
hydrogen cyanide
_____HCN______
Pb(MnO4)4 lead (IV) permanganate or plumbic permanganate
lithium hypoiodite
_____LiIO_______
HI (aq)
________hydroiodic acid_________
magnesium thiosilicate
____MgSSiO3____
TeCl2 ∙ 9 H2O
_tellurium dichloride nonahydrate_
zinc phosphide
_____Zn3P2______
H2SO4
__________sulfuric acid__________
aluminum peroxide
_____A2O4______
Zn(OH)2
_________zinc hydroxide_________
lithium sulfate
____Li2SO4______
SiH4
_______silicon tetrahydride_______
magnesium hypochlorite
____Mg(ClO)2___
HC2H3O2
____________acetic acid_________
manganese (IV )oxide
____MnO2______
CaMnO4
________calcium permanganate______
strontium nitrate
____Sr(NO3)2____
HMnO4 (aq)
_________permanganic acid______
lead (IV) iodite
____Pb(IO2)4_____
Cu2WO4
zinc chloride
____ZnCl2_______
Cl2 (g)
___________chlorine gas_________
cobalt (III) hypobromite
____Co(BrO)3____
CsIO
_______cesium hypoiodite________
_chromium (III) nitrite or chromic nitrite_
_nickel (III) peroxide or nickelic peroxide_
_coppper (I) tungstate or cuprous tungstate_
W19
SCH 3U- R.H.KING ACADEMY
Name:________________________
chromium (III) oxide
_____Cr2O3_____
HBr (aq)
_______hydrobromic acid______
iodine monofluoride
______IF_______
CuSO4 ∙ 5 H2O _copper (II) sulfate pentahydrate or “ic”_
ammonium perbromate
____NH4BrO____
Hg2I2
carbon disulphide
_____CS2_______
I2 (s)
aluminum hydroxide
_____Al(OH)3____
NiO2
beryllium sulfite
_____BeSO3_____
CdHAsO3
lead (II) dihydrogenphosphite
___Pb(H2PO3)2___
Fe(HCO3)3 _iron (III) bicarbonate or ferric bicarbonate_
_mercury (I) iodide or mercurous iodide_
__________iodine solid________
_nickel (II) peroxide or nickelous peroxide_
___cadmium hydrogenarsenite__
chromic hydrogenhypophosphite __Cr2(HPO2)3___
NH3
__nitrogen trihydride or ammonia_
iron (III) dihydrogenhypophosphite_Fe(H2PO2)3___
BaCl2 ∙ 3 H2O
____barium chloride trihydrate__
potassium hydrogenarsenite
____K2HAsO3____
H2CrO3 (aq)
________chromous acid________
mercury (II) bisulfate
___Hg(HSO4)2____
PCl5
___phosphorus pentachloride___
zinc monohydrogentellurite
___Zn(HTeO3)2___
H2O2
________hydrogen peroxide____
sodium bicarbonate
____NaHCO3____
H2Se (aq)
_______hydroselenic acid_______
cobalt (III) bromite
___Co(BrO2)3____
AlPO3
_______aluminum phosphite____
aluminum hydride
_____AlH3______
BrF3
______bromine trifluoride______
vanadium (V) oxide
_____V2O5______
LiOH
______lithium hydroxide_______
carbon tetraiodide
_____CI4_______
Si2Cl6
____disilicon hexachloride______
mercurous peroxide
____Hg2O2_____
Sn(CO2)2
cupric acetate
__Cu(C2H3O2)2___
H2SiO3 (aq)
acetic acid
___HC2H3O2 (aq)__
Fe(OH)2
_tin (IV) carbonite or stannic carbonite_
___________silicic acid_________
_iron (II) hydroxide or ferrous hydroxide_
ammonium phosphate decahydrate (NH4)3PO4 · 10 H2O
(NH4)2SiO3
______ammonium silicate______
aurous chromate
____Au2CrO4____
NaC2H3O2
________sodium acetate_______
ferrous hydroxide
_____Fe(OH)2____
SnSCO
stannic bromide
_____SnBr4______
H2SiO2 (aq)
_________silicous acid_________
plumbous thiocyanate
____Pb(SCN)2____
XeI4
________xenon tetraiodide_____
oxygen gas
_____O2 (g)______
HF (aq)
________hydrofluoric acid______
arsenic trihydride
_____AsH3______
H2 (g)
_________hydrogen gas________
ammonium dihydrogenphosphate __NH4H2PO3___
SnO3
_tin (IV) peroxide or stannic peroxide_
phosphorus pentachloride
_____PCl5______
N2O4
_______dinitrogen tetroxide_____
silver nitrate
_____AgNO3_____
IBr7
______iodine heptabromide_____
calcium chlorite
____Ca(ClO2)2____
P4 (s)
_________phosphorus solid_____
manganese (III) dichromate
___Mn2(Cr2O7)3___
HNO2
________nitrous acid__________
potassium permanganate
_____KMnO4____
CsOH
________cesium hydroxide______
silicon dioxide
_____SiO2_______
Au(ClO2)2
_gold (II) chlorite or aurous chlorite_
palladium (IV) nitrite
____Pd(NO2)4____
Hg2O
_mercury (I) oxide or mercurous oxide_
tin (II) thiocarbonite or stannous thiocarbonite
W20
SCH 3U- R.H.KING ACADEMY
Name:________________________
diboron hexahydride
____B2H6_______
Cr(CNO)3
_chromium cyanate or chromic cyanate_
sulfur
____S8 (s)_______
HIO4 (aq)
__________periodic acid_________
helium
____He (g)_______
Ag2S
__________silver sulfide_________
sulfur hexafluoride
____SF6________
CsI
__________cesium iodide________
antimonic sulfate
___Sb2(SO4)5____
Al2S3
________aluminum sulphide______
phosphorus pentachloride
____PCl5_______
Ni(NO3)2
_nickel (II) nitrate or nickelous nitrate_
selenium hexafluoride
____SeF6_______
CoPO4
tin (II) cyanide
____Sn(CN)2_____
MnSO3 _managanese (II) sulfite or manganous sulfite_
phosphorus
_____P4 (s)______
Fe(ClO4)3
chlorine
_____Cl2 (g)______
GaCl3
cesium manganate
___Cs2MnO4_____
Cr2O3
ammonium chromite
___(NH4)2CrO3___
KNO2
__________potassium nitrite______
calcium tungstate
____CaWO4_____
Rb2CrO4
________rubidium chromate______
silver acetate hexahydrate
_AgC2H3O2 · 6 H2O_
(NH4)2HPO4
__ammonium hydrogenphosphate__
potassium peroxide
_____K2O2______
Cs2CO3
_________cesium carbonate______
sodium thiocarbonate
____Na2SCO3____
Li2HPO4
____lithium hydrogenphosphate___
lithium dithiosulfite
_____Li2S3O_____
Mg(HCO3)2
_____magnesium bicarbonate_____
antimonous bromide
_____SbBr3_____
Ca(ClO3)2
_______calcium chlorate_________
tin (IV) hypotellurite
___Sn(TeO2)4____
Sr(MnO4)2
____strontium permanganate_____
carbonous acid
____H2CO2 (aq)___
SCI4
_______sulfur tetrachloride_______
hydroiodic acid
_____HI (aq)_____
Fe(C2H3O2)3
_iron (III) acetate or ferric acetate__
silver peroxide
_____Ag2O2_____
Ag2SO3
_________silver sulphite_________
sodium thiophosphate
____Na3SPO3____
Hg2Cl2
_mercury (I) chloride or mercurous chloride_
arsenic phosphide
______AsP______
PtO2
nitrogen gas
______N2 (g)_____
strontium dichromate
_____SrCr2O7____
barium molybdenate
____BaMoO4____
sodium hydride
_____NaH______
stannic fluoride
_____SnF4______
manganese (III) peroxide
_____Mn2O4____
cadmium peroxide
_____CdO2______
lithium hypoarsenite
____Li3AsO2_____
auric hydrogenphosphite
___Au2(HPO3)3___
permanganic acid
_____HMnO4____
phosphorus (V) oxide
______P2O5_____
silicon dioxide
_____SiO2_______
_cobalt (III) phosphate or cobaltic phosphate_
_iron (III) perchlorate or ferric perchlorate_
_________gallium chloride________
_chromium (II) oxide or chromous oxide_
_platinum (IV) oxide or platinic oxide_
NH4HSO4 ammonium hydrogensulfate or ammonium bisulfate
P2O5
______diphosphorus pentoxide____
NO2
_________nitrogen dioxide_______
SO3
__________sulfur trioxide________
CCl4
_______carbon tetrachloride______
Ag2Cr2O7
_______silver dichromate_________
CuSiO2
_copper (II) silicite or cupric silicite_
AsBr5
______arsenic pentabromide_____
HBr (aq)
________hydrobromic acid_______
NH4ClO
_____ammonium hypochlorite____
Sb3N5
_antimony (V) nitride or antimonic nitride_
W21
SCH 3U- R.H.KING ACADEMY
Name:________________________
magnesium sulfate heptahydrate _MgSO4 · 7 H2O_
AsI3
_________arsenic triiodide_______
mercurous perchlorate
____Hg2(ClO4)2___
KMnO4
____potassium permanganate_____
ferric thiosulfite
____Fe2(S2O2)3___
Na2S2O2
_______sodium thiosulphite______
hydroiodic acid
_____HI (aq)_____
TeO3
_______tellurium trioxide________
sodium peroxide
_____Na2O2_____
NH3
__ammonia or nitrogen trihydride__
calcium thiophosphate
___Ca3(SPO4)2___
NH4HCO2
_ammonium hydrogencarbonite or “bi”_
potassium dihydrogenarsenate ___KH2AsO4_____
FeCl2
_iron (II) chloride or ferrous chloride_
aluminum oxide nonahydrate
__Al2O3 · 9 H2O__
Xe (g)
___________xenon gas___________
sodium sulfite
_____Na2SO3____
CO2
_________carbon dioxide_________
platinic chloride pentahydrate ___PtCl4 · 5 H2O__
CuClO2
_copper (I) chlorite or cuprous chlorite_
cadmium dichromate
_____CdCr2O7____
K2Cr2O7
_______potassium dichromate____
cesium tungstate
_____Cs2WO4____
NH4SCN
____ammonium thiocyanate______
chromous acid
_____H2CrO3____
As2S5
______diarsenic pentasulphide____
manganese (II) peroxide
_____MnO2_____
Cr2O3
_chromium (III) oxide or chromic oxide_
nickelic hydroxide
_____Ni(OH)3____
SO2
_________sulfur dioxide__________
ammonium phosphide
____(NH4)3P_____
RbFO
______rubidium hypofluorite______
sodium bicarbonate
____NaHCO3____
Cu(BrO4)2
ferrous phosphite
____Fe3(PO3)2____
S8 (s)
antimony tribromide
_____SbBr3______
PbO3
auric bisilicate
____AuHSiO3____
Sr(HSiO2)2
_strontium hydrogensilicite or “bi”_
chlorine dihydrate
___Cl2 · 2 H2O___
Pb(CN)4
_lead (IV) cyanide or plumbic cyanide_
bismuthic chromate
____Bi2(CrO4)5___
Hg2(NO2)2
plumbous oxide
_____PbO______
Na2TeO4 ∙ 9H2O ___sodium tellurate nonahydrate__
sulfur trioxide
_____SO3_______
NO2
_________nitrogen dioxide_______
tellurous acid
_____H2TeO3____
H3PO4 (aq)
_________phosphoric acid________
silver fluorate
_____AgFO3_____
Pb(C2H3O2)4
_lead (IV) acetate or plumbic acetate_
barium bromite
____Ba(BrO2)2____
N2O
________dinitrogen monoxide_____
tetraarsenic decasulphide
_____As4S10_____
CuI
_copper (I) iodide or cuprous iodide_
gallium thiocyanate
_____Ga(SCN)3___
CaC2
________calcium carbide_________
hydrocyanic acid
____HCN (aq)_____
H2MnO4 (aq)
________manganic acid__________
aurous bisulfate
___Au(HSO4)2____
NF3
________nitrogen trifluoride______
calcium carbide
____Ca2C_______
Al(IO2)3
________aluminum iodite________
barium periodate
_____Ba(IO4)2____
Pb(OH)2
_lead (II) hydroxide or plumbous hydroxide_
platinic cyanide
_____Pt(CN)4____
Cr(CNO)3 _chromium (III) cyanate or chromic cyanate_
hypophosphorous acid
_____H3PO2_____
O2 (g)
copper (II) perbromate or cuprous perbromate
___________sulfur solid__________
_lead (IV) peroxide or plumbic peroxide_
_mercury (I) nitrite or mercurous nitrite_
__________oxygen gas___________
W22