1
SCH 4U Nomenclature Independent Study
An excellent knowledge of Chemical Nomenclature is essential for success in grade 12 Chemistry. For your first
independent study you will review the nomenclature you learned in grade 11 and write a test.
Nomenclature Test Date:___________________________________________
Valence Value
The valence value of an element is defined as the numbers of electrons an atom of that element will
gain/lose/share when forming a compound.
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
phosphate
Na Cl
Mg O
Ca F
Li SO4
Al PO4
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 3
Al PO4
1 1
Al PO4
Al1(PO4)1
AlPO4
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.
c) Groups of elements such as SO42- and PO43- 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.
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) Elements have a valence value determined by their group on the Periodic table unless indicated by the
name.
I
2
3
4
3
2
1
0
2
A) Binary Compounds where the first element has 1 valence only
Use rule “c” and the cross-over rule.
Examples:
sodium oxide Na2O
Exercise:
calcium sulfide CaS
magnesium bromide MgBr2
For all exercises you will give the name if formula provided and the formula if the name is provided.
calcium nitride
__Ca3N2_
silver sulphide
_Ag2S___
barium iodide
__BaI2__
silicon oxide
__SiO2__
zinc silicide
__ZnSi__
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.
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 you will give the name if formula provided and the formula if the name is provided.
iron(III) chloride
__FeCl3____
arsenic(V) iodide
__AsI5____
tin(IV) oxide
__SnO2_____
gold(I) telluride
__Au2Te____
phosphorus(V) chloride ___PCl5____
sulphur(VI) oxide
__SO3______
copper(I) bromide
___CuBr____
bismuth(v) phosphide __Bi3P5____
antimony(V) sulphide
__Sb2S5____
mercury(II) chloride
__HgCl2____
arsenic(III) oxide
__As2O3___
gold(III) chloride
__AuCl3____
mercury(I) sulphide
__Hg2S_____
copper(II)sulphide
__CuS______
Pb3N2
__lead (II) nitride____________
SbF3
__antimony (III) fluoride__________
NiI2
__nickel (II) iodide__________
MnO2
Co2Se3
_cobalt (III) selenide______
BiF5
___bismuth (V) fluoride___________
SnO2
__tin (IV) oxide______________
ZnO
___zinc oxide____________________
__manganese (IV) oxide___________
3
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 you will give the name if formula provided and the formula if the name is provided.
ferric oxide
__Fe2O3________
auric iodide
_AuI3__________
phosphoric sulfide
___P2S5________
nitrous phoshpide
__N3P__________
cuprous fluoride
__CuF_________
stannic oxide
__SnO2_________
stannic fluoride
__SnF4_________
arsenious nitride
__AsN__________
antimonous sulfide
__Sb2S3________
mercuric fluoride
__HgF2_________
arsenious bromide
__AsBr3________
cuprous nitride
__Cu3N_________
nickelic iodide
__NiI3_________
auric chloride
___AuCl3_______
chromous oxide
__CrO__________
cupric sulfide
___CuS_________
NiI2
_nickelous iodide____
Sb2S5
__antimonic sulfide______
HgBr
__mercurous bromide_____
As4C5
___arsenic carbide_______
CoCl3
___cobaltic chloride______
Au2S
___aurous sulfide________
As3N5
__arsenic nitride______
PAs
___phosphorous arsenide_
Fe2C
__ferrous carbide______
NiP
___nickelic phosphide
PbS
__plumbous sulfide________
CoF3
___cobaltic fluoride_____
CuO
__cuproc oxide____________
Au2Se3
___auric selenide______
4
Formula of Elements
Most elements are written as single entities.
Example:
iron Fe(S)
copper Cu(S)
The exceptions to this rule are:
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:
helium He(g)
fluorine F2(g)
bromine Br2(l)
sulphur S8(s)
iodine
I2(s)
phosphorus P4(s)
** The exceptions must be memorized! **
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
Valence
Radical name
Formula
Valence
1
hydroxide
OH
1
ammonium
NH4+
cyanide
1
manganate
MnO3-
1
chromate
CNCrO42-
2
dichromate
Cr2O72-
2
cyanate
CNO-
1
thiocyanate
SCN-
1
carbonate
CO32-
2
nitrate
NO3-
1
phosphate
PO43-
3
sulfate
SO42-
2
fluorate
FO3-
chlorate
ClO3-
1
-
Examples:
sodium hydroxide
lithium cyanide
sodium dichromate
NaOH
LiCN
Na2Cr2O7
1
potassium chromate
ammonium hydroxide
magnesium permanganate
K2CrO4
NH4OH
Mg(MnO4)2
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
potassium hydroxide
_KOH____________
cobalt(II) cyanate
__Co(CNO)2________
iron(III) cyanate
_Fe(CNO)3_________
zinc hydroxide
__Zn(OH)2_________
barium hydroxide
__Ba(OH)2_________
gallium dichromate
__Ga2(Cr2O7)3______
ammonium chloride
__NH4Cl___________
potassium chromate
__K2CrO4_________
copper(II) chromate
__CuCrO4_________
Sn(CN)4 _stannic cyanide_______________
ammonium dichromate __(NH4)2Cr2O7_____
Al(OH)3 __aluminum hydroxide___________
ammonium chlorate
__NH4ClO3_________
KMnO4 __potassium permangante________
ferrous hydroxide
__Fe(OH)2_________
CsCN
___cesium cyanide_______________
nickel(III) cyanide
__Ni(CN)3_________
XeF6
__xenon hexafluoride____________
auric bromide
__AuBr3___________
Ca(SCN)2 __calcium thiocyanate_________
5
Acids
There are three groups of acids:
- binary acids
- oxy acids
- 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 dissociated 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 you will give the name if formula 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)_
hydrochloric acid
__ HCl (aq)
hydrophosphoric acid
_ H3P(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. The name of the acid ends in “ic”.
2. The name of the associated radical ends in “ate”.
3. The valence value of the associated radical is equal to the number of acidic hydrogens in the acid.
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
associated radical
associated radical
associated radical
acetate
C2H3O2-
1
1
acetic acid
HC2H3O2
nitric acid
HNO3
nitrate
NO3-
fluoric acid
HFO3
fluorate
FO3-
1
carbonic acid
H2CO3
carbonate
CO32-
2
2
3
sulfuric acid
H2SO4
sulfate
SO42-
phosphoric acid
H3PO4
phosphate
PO43-
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 oxy acid immediately above the oxy acid that has been memorized.
Example:
memorized acid: fluoric acid = HFO3
therefore: chloric acid = HClO3
iodic acid = HIO3
bromic acid = HBrO3
If hydrogens are joined with the radicals learned earlier a few more acids can be formed.
chromate = CrO42chromic acid = H2CrO4
cyanate = CNOcyanic acid = HCNO
6
Exercise:
On a separate piece of paper complete the following chart for the acids listed.
Name of the acid
bromic acid
manganic acid
Formula of the acid
telluric acid
selenic acid
Name of the
Formula of the
Valence value of the
associated radical
associated radical
associated radical
iodic acid
cyanic acid
silicic acid
arsenic acid
dichromic acid
chromic acid
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 remains 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 ClO2hypochlorous acid HClO
hypochlorite ion ClO-
Exercise:
On a separate piece of paper complete the following chart for the acids listed.
Name of the acid
Formula of the acid
phosphoric acid
phosphorous acid
hypophosphorous acid
sulfuric acid
sulfurous acid
nitric acid
nitrous acid
Name of the
Formula of the
Valence value of the
associated radical
associated radical
associated radical
perbromic acid
bromic acid
bromous acid
hypobromous acid
iodic acid
iodous acid
hypoiodous acid
selenic acid
selenous acid
telluric acid
tellurous acid
manganic acid
permanganic acid
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 we 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, we can get salts
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
7
Salts from oxy acids
potassium chlorate__KClO3____________
sodium carbonate
__Na2CO3__________
sodium nitrate
ferric sulfate
__Fe2(SO4)3_______
iron(III) acetate ___Fe(C2H3O2)3_______
gold(I) phosphate
__Au3PO4__________
aluminum silicate ___Al2(SiO3)3__________
magnesium chlorate
__Mg(ClO3)2______________
magnesium phosphate __Mg3(PO4)2______
ammonium nitrate
__NH4NO3_______________
aurous sulfate
K2CO3
__potassium carbonate__________
ammonium chlorate __NH4ClO3__________
Na3PO4
__sodium phosphate_____________
zinc nitrate
Fe(ClO3)2
__iron (II) chlorate (ferrous chlorate)
potassium acetate _KC2H3O2_____________
Al(C2H3O2)3
_aluminum acetate_______________
lithium chromate __Li2CrO4_____________
Zn3(PO4)2
_zinc phosphate________________
__NaNO3_____________
__Au2SO4 ____________
__Zn(NO3)2______________
Salts from Derived Oxy Acids
aluminum sulfite
_Al2(SO3)3________
copper(I) permanganate __CuMnO4____________
cobalt(III) chlorite
_Co(ClO2)3______
ammonium hypophosphite __(NH4)3PO2________
tin(IV) hypochlorite
__Sn(ClO)4________
mercuric perchlorate
__Hg(ClO4)2____
sodium phosphite
__Na3PO3__________
magnesium sulfite
___MgSO3__________
aluminum nitrite
__Al(NO2)3________
cuprous chlorite
__CuClO2_____________
cobalt(II) hypophosphite__Co3PO2)2________
ammonium hypoiodite ___NH4IO____________
stannic perchlorate
__Sn(ClO4)4________
gold(III) chromate
sodium sulphite
__Na2(SO3_________
Ga(BrO4)3
___gallium perbromate_____
aluminum chlorite
__Al(ClO2)3______
Pt(ClO)4
__platinum (IV) hypochlorite__
nickel(III) hypochlorite _Ni(ClO)3_________
Ag2O
__silver oxide____
tin(IV) phosphite
NH4CNO
__ammonium cyanate___
_Sn3(PO3)4_________
__Au2(CrO4)3_________
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  H+ + H2PO4Step 2: H2PO4-  H+ + HPO42- Step 3: HPO42-  H+ + PO43Radical
PO43HPO42H2PO4-
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- = bicarbonate or monohydrogen carbonate)
8
For the following give the formula and valence value of the radicals listed:
phosphite
__PO33-____
monohydrogensulphate
__HSO4-__
__1__
monohydrogenphosphite
_HPO32-_____ _2__
suphite
__SO32-____
__2__
dihydrogenphosphite
__H2PO3-___
__1__
monohydrogensulphite
__ HSO3-____
__1__
hypophosphite
__ PO23-____
__3__
carbonate
__ CO32-____
__2__
monohydrogenhypophosphite __ HPO22-___
__2__
monohydrogencarbonate
__ HCO3-___
__1__
dihydrogenhypophosphite
__ H2PO2-___
__1__
chromate
___ CrO42-___ __2__
sulphate
___SO42-___
__2__
monohydrogechromate
___HCrO4-__
2. Acid Salts
The acid radicals are treated just like any other radical.
Examples:
calcium dihydrogenhypophosphite
Ca(H2PO2)2
potassium monohydrogen carbonate KHCO3
aluminum bisulphite
sodium hydrogensulfate
Al(HSO3)3
NaHSO4
__3__
__1__
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
sodium monohydrogenphosphate _Na2HPO4_
ferric monohydrogensulphate _Fe(HSO4)3__
magnesium dihydrogenphosphate __Mg(H2PO4)2__
ammonium hydrogencarbonate _NH4HCO3__
aluminum dihydrogenphosphite __Al(H2PO3)3__
chromium(III) hydrogensulphite _Cr(HSO3)3_
chromium(III) hydrogenphosphite _Cr2(HPO3)3_
nickel(II) monohydrogensilicate _Ni(HSiO3)2_
cupric monohydrogenarsenate __CuHAsO4__
cadmium monohydrogenselenate _Cd(HSeO4)2_
stannic dihydrogenhypophosphite __Sn(H2PO2)4__
potassium monohydrogenselenite _KHSeO3_
K2HPO3 _potassium hydrogenphosphite_
Bi2(HPO3)5
_bismuth (V) hydrogen phosphite_
Ba(HSO3)2
Pb(H 2PO2)2
_lead (II) dihydrogenhypophosphite_
_barium bisulfite_
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 ∙ 5H2O
chlorine octahydrate
Cl2 ∙ 8H2O
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
calcium sulfate dihydrate
_CaSO4 ∙2 H2O_
chromium(III) nitrate nonahydrate
Cr(NO3)3 ∙ 9 H2O
magnesium sulfite heptahydrate
_MgSO3 ∙ 7H2O
cobalt(II) perchlorate pentahydrate
Co(ClO4)2 ∙ 5 H2O
sodium carbonate decahydrate
Na2CO3 ∙ 10 H2O
aluminum oxide monohydrate
ferric chloride hexahydrate
calcium nitrate trihydrate
cadmium bromide tetrahydrate
barium chloride dihydrate
BaCl2 ∙ 2 H2O
_Al2O3 ∙ H2O_
aluminum nitrate monohydrate
Al(NO3)3∙ H2O
_FeCl3 ∙6 H2O_
bromine decahydrate
Br2 ∙ 10 H2O
iodine tetrahydrate
_I2 ∙ 4 H2O__
Ca(NO3)2 ∙ 3 H2O
_CdBr2 ∙ 4 H2O_
copper(II) bromate hexahydrate
Cu(BrO3)2 ∙ 6 H2O
9
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 you will give the name if formula provided and the formula if the name is provided.
zinc peroxide
___ ZnO2_______
potassium peroxide
___ K2O2_________
calcium peroxide
___ CaO2_________
strontium peroxide
____ SrO2__________
cesium peroxide
___ Cs2O2_________
hydrogen peroxide
____ H2O2____________
copper(II) peroxide
____ CuO2____________
barium peroxide
____ BaO2____________
magnesium peroxide
___ MgO2____________
aluminum peroxide
____ Al2O4___________
Thio Compounds
The prefix “thio” in the name indicates that an oxygen atom has been replaced by a sulphur atom.
Examples:
potassium sulphate
K2SO4
potassium thiosulphate
K2S2O3
sodium carbonate
Na2CO3
sodium thiocarbonate
Na2SCO2
potassium cyanate
KCNO
potassium thiocyanate
KSCN
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
ammonium thiocyanate _NH4SCN_______
potassium thiosulfate ____K2S2O3___________
sodium monohydrogenthiosulphate _NaHS2O3__
aluminum thiocarbonate __Al2(SCO2)3________
CaS2O2
AlSPO3
__calcium thiosulfite______
__aluminum thiophosphate______
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
P2O5
arsenic trichloride
AsCl3
carbon monoxide
CO
xenon tetrafluoride
XeF4
Exercise:
For all exercises you will give the name if formula provided and the formula if the name is provided.
xenon hexafluoride
___XeF6_____
silicon dioxide
___SiO2_______
sulfur dioxide
___SO2________
carbon tetrachloride
___CCl4_______
sulphur trioxide
__SO3___________
lead dioxide
___PbO2________
carbon dioxide
__CO2___________
manganese dioxide
___MnO2________
carbon disulphide
___CS2_________
nitrogen dioxide
___NO2_______
dinitrogen tetroxide
__N2O4______
diphosphorus trisulfide __P2S3_______
10
carbon tetrachloride
___CCl4______
ICl
__iodine monochloride____________
lead dioxide
___PbO2________
SeCl2
___selenium dichloride_________
dichlorine monoxide
___Cl2O_________
ICl7
___iodine heptachloride___________
NF3
___nitrogen trifluoride____________
P2S5
___ diphosphorus pentasulphide _
diphosphorus pentasulphide
KrF2
___P2S5____
____krypton difluoride_____________
PRACTICE, PRACTICE, PRACTICE
sulphur
____S8 (s)___________
lead (IV) nitride
__Pb3N4__________
plumbous peroxide
___PbO2__________
cupric chloride
___CuCl2________
calcium iodite
___Ca(IO2)2_______
stannous iodide
___SnI2_______
sulfur dioxide
___SO2________
aluminum nitride
__AlN_______
gallium hypoarsenite
__GaAsO2______
antimonous bromide
__SbBr3________
neon
___Ne (g)___________
tin (IV) sulfide
___SnS2___________
platinum (IV) thiocarbonite
___Pt(SCO)2_________
silver oxide
__Ag2O____________
calcium cyanide heptahydrate ___Ca(CN)2 7 H2O___
calcium phosphide
__Ca3P2__________
cuprous permanganate
___CuMnO4______
iron (II) sulfide
___FeS__________
chromous acid
__H2CrO3____
arsenic phosphide
__As3P5___________
cyanic acid
__HCNO________
mercury (II) nitride
__Hg3N2___________
iodine monochloride
___ICl________
tin (IV) fluoride
___SnF4__________
stannic dihydrogen hypophosphite __Sn(H2PO2)4____
sodium hydride
___NaH_____________
auric peroxide
___Au2O4______
sodium monohydrogen phosphate __Na2HPO4______
ammonium selenide
___(NH4)2Se_____
barium hydroxide
__Ba(OH)2_________
titanium
___Ti (s)______
sodium bicarbonate
__NaHCO3__________
ferrous thiosilicate
__FeSSiO2___
perchloric acid
___HClO4__________
cadmium bisulphate
___Cd(HSO4)2_______
nitrous acid
__HNO2______
lithium phosphide
___Li3P____
calcium peroxide
___ CaO2 __________
bromine
__Br2 (l) ________
plumbous oxide
____PbO____________
potassium oxide
_K2O____
potassium chloride
____KCl___________
barium sulfide
__BaS_________
hydrogen iodide
___HI_____________
magnesium fluoride
__MgF2_______
antimonous phosphide
___SbP_____________
mercurous bromide
__Hg2Br2________
silver sulfide
___Ag2S____________
zinc hydride
__ZnH2________
mercuric oxide
___HgO___________
ferric sulfide
__Fe2S3__________
phosphorus (III) chloride
___PCl3___________
arsenic (V) oxide
___As2O5_________
ferrous oxide
___FeO__________
11
magnesium peroxide
____MgO2__________
silver hypoarsenite
__Ag3AsO2__
zinc chromate dihydrate
___ZnCrO4 ∙ 2 H2O__
copper (II) sulphate pentahydrate _CuSO4 5 H2O_
phosphoric acid
____H3PO4______
cyanic acid
___HCNO_
chromic cyanide
____Cr(CN)3______
sulfur dioxide
_____SO2________
sodium thiosulfate hexahydrate _Na2S2O3 ∙ 6 H2O_
potassium permanganate
____KMnO4_______
iron (III) carbonate
_Fe2(CO3)3_
zinc chloride
____ZnCl2________
magnesium phosphide
__Mg3P2_______
diarsenic pentasulfide
____As2S5_______
fluorine
___F2(g)____________
hypophosphorous acid
____H3PO2_______
chlorous acid
__HClO2____
potassium hydroxide
_____KOH_________
dicarbon tetrahydride
__C2H4_____
iron (III) cyanate
___Fe(CNO)3______
hydrosulfuric acid
___H2S (aq)_________
barium chromate
____BaCrO4______
stannous tungstenate
__SnWO4____
ammonium thiocyanate
____NH4SCN______
magnesium peroxide
___MgO2______
potassium dichromate
____K2Cr2O7_____
ammonium hydrogenhypophosphite _(NH4)2HPO2__
mercuric tellurite
____HgTeO3______
tetracarbon decahydride
__C4H10_____
platinum (IV) silicate
____Pt(SiO3)2_______
nickelic perbromate
__Ni(BrO4)3________
cobaltous thioselenite
_____CoSSeO2_____
chlorine dihydrate
__Cl2 2 H2O________
tricarbon octahydride
_____C3H8_____
copper (II) hypoarsenite
___Cu3(AsO2)2____
thiocyanic acid
____HSCN______
dichromic acid
__H2Cr2O7_____
silver hypophosphite
___Ag3PO2_____
aurous hydroxide
___AuOH__________
bromine
___Br2(l) ________
barium bithiocarbonate
___Ba(HSCO2)2_____
silicon tetrahydride
___SiH4_______
hydrogen chloride
____HCl_________
cesium arsenite dihydrate
__Cs3AsO3 2 H2O__
sulfuric acid
___H2SO4_______
manganic hydroxide
__Mn(OH)3__
chromous cyanate
___Cr(CNO)2______
arsenious oxide
___As2O3____
magnesium thiophosphate
____Mg3(SPO3)2_____
silver chlorate
__AgClO3____
ferrous iodide
____FeI2___
calcium perbromate
___Ca(BrO4)2____
barium dichromate
____BaCr2O7_______
barium phosphide
___Ba3P2___
phosphorus
___P4(s) _______
nickel (II) cyanide
___Ni(CN)2___
periodic acid
__HIO4_______
beryllium phosphate
___Be3(PO4)2____
tetraphosphorus decaoxide
____P4O10_____
cadmium sulfite
___CdSO3______
hydrotelluric acid
____H2Te(aq)____
boron tribromide
___BBr3____
ammonium bitungstenate
____NH4HWO4____
silicon carbide
____SiC________
iron (III) peroxide
____Fe2O4_____
mercuric hydroxide
____Hg(OH)2_______
neon
___Ne(g)_________
cupric perchlorate
_____Cu(ClO4)2______
12
gold (III) selenate
_Au2(SeO4)3__
cupric acetate
__Cu(C2H3O2)2___
stannic phosphide
__Sn3P4___
acetic acid
___HC2H3O2___
arsenic (V) oxide
__As2O5___
ammonium phosphate decahydrate (NH4)3PO4 ∙ 10 H2O
sulfur trioxide
__SO3_____
aurous chromate
___Au2CrO4___
hydrogen cyanide
__HCN__________
ferrous hydroxide
___Fe(OH)2___
lithium hypoiodite
__LiIO________
stannic bromide
___SnBr4_____
magnesium thiosilicate
__MgSSiO2______
plumbous thiocyanate
___Pb(SCN)2____
zinc phosphide
___Zn3P2________
oxygen
___O2(g)________
aluminum peroxide
___Al2O4________
arsenic trihydride
__AsH3________
lithium sulfate
___Li2SO4_____
ammonium dihydrogenphosphate _NH4H2PO4____
magnesium hypochlorite
___Mg(ClO)2______
phosphorus pentachloride
__PCl5______
manganese dioxide
___MnO2________
silver nitrate
__AgNO3________
strontium nitrate
___Sr(NO3)2______
calcium chlorite
__Ca(ClO2)2______
lead (IV) iodite
___Pb(IO2)4_______
manganese (III) dichromate
___Mn2(Cr2O7)3___
zirconium chloride
____ZrCl4_______
potassium permanganate
___KMnO4_
cobalt (III) hypobromite
___Co(BrO)3______
silicon dioxide
__SiO2___________
chromium (III) oxide
____Cr2O3________
palladium (IV) nitrite
__Pd(NO2)4_______
iodine monofluoride
___IF___________
diboron hexahydride
__B2H6_____________
ammonium perbromate
___NH4BrO4_______
sulfur
___S8 (s)__________
carbon disulphide
___CS2__________
helium
__He(g)___________
aluminum hydroxide
__Al(OH)3__________
uranium hexafluoride
__UF6_________
beryllium sulfite
___BeSO3_________
antimonic sulfate
___Sb2(SO4)5_______
lead (II) dihydrogenphosphite
___Pb(H2PO3)2_____
phosphorus pentachloride
___PCl5______
chromic hydrogenhypophosphite __Cr2(HPO2)3__
sulfur hexafluoride
__SF6_____
iron (III) dihydrogenhypophosphite __Fe(H2PO2)3____
tin (II) cyanide
___Sn(CN)2_________
potassium hydrogenarsenite
__K2HAsO3___
phosphorus
___P4(s)__________
mercury (II) bisulfate
___Hg(HSO4)2______
chlorine
___Cl2(g)___________
zinc monohydrogentellurite
___Zn(HTeO3)2_____
cesium manganite
__CsMnO2__________
sodium bicarbonate
___NaHCO3_____
ammonium chromite
__(NH4)2CrO3______
cobalt (III) bromite
___Co(BrO2)3____
calcium tungstenate
___CaWo4________
aluminum hydride
___AlH3______
silver acetate hexahydrate
__AgC2H3O2 ∙ 6 H2O_
vanadium (V) oxide
___V2O5_______
potassium peroxide
___K2O2__
carbon tetraiodide
__CI4___
sodium thiocarbonate
__Na2SCO2__
mercurous peroxide
__Hg2O2______
lithium dithiosulfite
__Li2S3O_____
13
PbS2O2
_lead(II) thiosulfite__
Ag2S
__silver sulfide___
MgO2
__magnesium peroxide______
Fe(OH)2
_iron (II) hydroxide (or ferrous)____
Al2(SO2)3
__aluminum hyposulfite _____
N2O4
__dinitrogen tetroxide_
Au(MnO3)3
_gold (III) mangante (or auric)_
K2S2O
_potassium thiohyposulfite__
BrCl5
__bromine pentachloride_
HMnO4 (aq)
__permanganic acid___
Ba(FO)2
__barium hypofluorite_
H2SiO3 (aq)
__silicic acid_____
ZnHAsO5
_zinc hydrogenperarsenate_
CaS2O2
__calcium thiosulfite___
Co(NO3)3
_cobalt (III) nitrate (or cobaltic)_
N2O4
____ dinitrogen tetroxide ____
HgSCO
mercury (II) thiocarbonite (or mercuric)
Au(IO4)3
_gold (III) periodate (or auric)___
H2S (aq)
_hydrosulfuric acid_
PbO3
_lead (IV) peroxide (or plumbic)_
SrCl2∙8 H2O
_strontium chloride octahydrate_
Mg(MnO3)2
_magnesium mangante_
H2S (aq)
_hydrosulfuric acid_
MnP
manganese (III) phosphide (or manganic)
Cr(H2PO3)3 chromium(III) dihydrogenphosphite (or chromic)
Fe(H2PO3)3 iron (III) dihydrogenhypophosphite (or ferric)
K2O2
__potassium peroxide__
PCl5
___phosphorus pentachloride____
Al(ClO4)3
__aluminum perchlorate___
Rb2SSiO2
_rubidium thiosilicate_
Ga2(SiO3)3
__gallium silicate__
Ra3P2 · 7 H2O
_radium phosphide heptahydrate___
P2S3
_diphosphorus trisulfide__
NH4OH
__ammonium hydroxide_
HNO3 (aq)
__nitric acid____
HCN (aq)
_hydrocyanic acid__
FeCr2O7
__iron (II) dichromate (or ferrous)_
Ni3(SPO2)2
_nickel (II) thiophosphite (or nickelous)
CuSO4∙5H2O copper(II)sulfate pentahydrate (or cuprous)
H2TeO2 (aq)
__hypotellurous acid__
H2SeO3 (aq)
__selenous acid_____
Cu2Se
_copper (I) selenide (or cuprous)___
CaCr2O7
__calcium dicjromate__
Ga(OH)3
_gallium hydroxide_
P2O5
_diphosphorus pentoxide____
B2H6
_diboron hexahydride_
BaF2
_barium fluoride__
Cr(BrO)3
chromium (III) hypobromite (or chromic)
MnO2
_manganese (IV) oxide___
H2CrO3 (aq)
__chromous acid__
Al2O4
_aluminum peroxide____
Pb(ClO)2
__lead (II) hypochlorite (or plumbous)_
HI (aq)
__hydroiodic acid_____
H2Se(aq)
__hydroselenic acid_
Au2(HAsO2)3·9 H2O gold(III) hydrogenhypoarsenite nonahydrate (or auric)
CaMoO4
_calcium molybdenate_
SO3
___sulfur trioxide__________
C4H8
_tetracarbon octahydride_
Li2SCO2
_lithium thiocarbonate__
ZnSeO2
_zinc hyposelenite_
Sr3N2 · 3 H2O
_strontium nitride trihydrate_
BaF2
_barium fluoride__
(NH4)2SiO2
_ammonium silicite_
H2Te(aq)
_hydrotelluric acid___
H2Te (aq)
_hydrotelluric acid_
Co2(HPO2)3∙4 H2O cobalt (III) hydrogenhypophosphite
Cr(CNO)3
_chromium (III) cyanate (or chromic)_
HIO4 (aq)
_periodic acid____
tetrahydrate
14
NaBr
__sodium bromide__
SnCl4
__tin
(IV) chloride (or stannic)__
Ca(C2H3O2)2
__calcium acetate_______
Cu2O
_copper
P2O5
__diphosphorus pentoxide_____
CuSO4
_copper (II) sulfate (or cupric)_
Ti(SO4)2
__titanium (IV) sulphate__
Ag2S
__silver sulfide__
FePO4
_iron (III) phospahte_
CsI
__cesium iodide__
K3N
__potassium nitride_
Al2S3
__aluminum sulfide__
SO2
__sulfur dioxide_______
Ni(NO3)2
__nickel (II) nitrate (or nickelous)_
CuOH
_copper (I) hydroxide___
CoPO4
__cobalt (III) phosphate (or cobaltic)_
Zn(NO2)2
__zinc nitrite____
MnSO3
_manganese (II) sulfite (or manganous)
V2S3
_vandium (III) sulfide____
Fe(ClO4)3
_iron (III) perchlorate (or ferric)_
NaOH
__sodium hydroxide______
GaCl3
_gallium chloride_
H2SO3
__sulfurous acid_________
Cr2O3
_chromium (III) oxide (or chromic)_
H2S
___dihydrogen monosulfide_____
KNO2
__potassium nitrite__
H3PO4
___phosphoric acid________
Rb2CrO4
_rubidium chromate__
NH3
__nitrogen trihydride (ammonia)___
(NH4)2HPO4
__ammonium hydrogenphosphate__
HCN
__hydrogen cyanide______
Cs2CO3
_cesium carbonate__
Ca(OH)2
___calcium hydroxide_______
Li2HPO4
__lithium hydrogenphosphate_
Fe(OH)3
__iron (III) hydroxide___
Mg(HCO3)2
__magnesium bicarboante_
H3P
__trihydrogen monophosphide_____
Ca(ClO3)2
_calcium chlorate__
Na2CO3
__sodium carbonate________
Sr(MnO4)2
__strontium permanganate__
P2O5
__diphosphorus pentoxide__
SCI3
_sulfur trichloride__
NH3
__ nitrogen trihydride (ammonia)__
Fe(C2H3O2)3
_iron (III) acetate (or ferric)_
FeSO4
__iron (III) sulfate (or ferrous)______
Ag2SO3
__silver sulfite___
SiO2
__silicon dioxide____
Hg2Cl2
__mercury (I) chloride (or mercurous)_
GaCl3
__gallium chloride____
TiO2
_titanium (IV) oxide___
CoBr2
___cobalt (II) bromide (or coblatous)_
NH4HSO4
B2H4
_diboron tetrahydride__
P2O5
___diphosphorus pentoxide__
CO
___carbon monoxide___
NO2
__nitrogen dioxide___
P4
___phosphorus___________
SO3
___sulfur trioxide___________
NH4Cl
___ammonium
chloride____________
CCl4
___carbon tetrachloride__
Al2O3
____aluminum
oxide__________
Ag2Cr2O7
__silver dichromate__
KBr
___potassium
bromide_______
CuSiO2
__copper (II) silicite (or cupric)____
K2S
___potassium
sulfide________
AsBr5
_arsenic (V) bromide (or arsenic)__
SnI2
____tin
(II) iodide_(or stannous)___
Sb3N5
_antimony (V) nitride (or antimonic)__
(I) oxide (or cuprous)___
ammonium bisulfate (or hydrogensulfate)