Name:____________________
Science 10 – Chapter 4 Review
1.
Symbol (include charge)
Atomic Number
# of electrons
72
68
# of neutrons
Ni 2+
Sc
IU+4
2. Define the following:
a) Stable octet ____________________________________________________
b) Valence electrons _______________________________________________
c) Ionic bond _____________________________________________________
d) Covalent bond __________________________________________________
3. Draw Bohr models for the following:
a) Mg
b) H2O
4. Draw Lewis diagrams for the following:
a) Sodium Chloride
b) Fluorine gas, F2
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5. On the following periodic table, identify
-a family
-a period
-halogens
-alkali metals
noble gases
6. Identify the following atoms (no ion charge) from their Bohr diagrams.
7. When naming a compound with a multivalent metal, what must you include in the
name?
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8. Determine the metal ion and its charge in each of the following compounds.
a)
CoCO3 ........................The metal ion is _________________
b)
Pd(ClO)2 ....................The metal ion is _________________
c)
Ru(CO3)2 ...................The metal ion is _________________
d)
U(CrO4)3 ...................The metal ion is _________________
9. Name the following compounds. Include an ‘i’ for ionic and ‘c’ for covalent bonds
Si2Br6
CrF2
AuP
Be(CN)2
OsPO3
P2S3
N2O3
MnF3
RuN
Mg(NO3)2
CuCO3
As2O5
Zr(MnO4)4
HgSO3
Fe(ClO)2
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10. Write formulas for the following compounds. Include an ‘i’ for ionic bond and ‘c’
for covalent bond
Potassium arsenide
Calcium selenide
Cobalt (III) nitride
Beryllium chromate
Yttrium hydrogen sulphite
Tricarbon pentoxide
Silicon tetrachloride
Lithium bromide
Barium oxide
Nickel (III) phosphide
Scandium phosphite
Radium acetate
Dinitrogen monoxide
Tricarbon tetraiodide
Thallium (III) bisulphate
Hexaboron monosilicide
Magnesium hydroxide
Ammonium dichromate
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9. An unknown element (we’ll call “Y”) forms the following compounds:
Y(NO3)5
Y2(CrO4)3 and Y(MnO4)3
From the information given, what possible ions (with their charges) does Y form?
_________________________________________________________________
9. Balance the following equations.
a)
Al
+
b)
PbCl4
c)
Br2
d)
Na2CO3
e)
Mn
f)
C2H6 +
g)
K2SO4
h)
Ca(OH)2
i)
Mg3N2
F2

+
K3PO4
+
+


FeI3
+
AlF3
KCl
I2
Cr(NO3)3
+

I2

MnI4
O2

CO2
+
AgNO3
+


Mg
+
Pb3(PO4)4
FeBr3
NaNO3
+
+
Cr2(CO3)3
H2O
Ag2SO4

HCl
+
CaCl2
+
+
KNO3
H2O
N2
10. Write skeleton equations for the following chemical reactions, and balance them. Be
sure to check your formulas carefully before you balance!
a) lithium phosphate + magnesium sulfate  lithium sulfate + magnesium phosphate
b) zinc iodide + copper (I) nitrate  zinc nitrate + copper (I) iodide
c) mercury (II) nitrate + sodium hydrogen carbonate  sodium nitrate + mercury (II)
hydrogen carbonate
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d) nickel (III) iodide + iron (II) sulfide  nickel (III) sulfide + iron (II) iodide
e) aluminum hydroxide + hydrogen fluoride  aluminum fluoride + water
f) calcium bromide + potassium carbonate  calcium carbonate + potassium bromide
g) titanium (III) fluoride + cesium sulfite  cesium fluoride + titanium (III) sulfite
h) barium sulfate + sodium hydroxide  sodium sulfate + barium hydroxide
i) calcium chloride + potassium  potassium chloride + calcium
j) tricarbon octahydride + oxygen  carbon dioxide + water
Remember the
diatomic
elements!
H2O2F2Br2I2N2Cl2
k) sodium + fluorine  sodium fluoride
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