BALANCING EQUATIONS PRACTICE PROBLEMS
NAME
KEY
Directions: Balance each of the following equations. If it is already balanced, write BALANCED after
the equation.
2
Cl2 
Na +
NaCl
SO2 
CaO +
N2 +
2
H2 
3
2
Br2 
2
K+
2
Zn +
2
KClO3 
2
5
SF4 +
I 2 O5 
2
CH3CHO +
2
Mn2+ +
2
KCl +
4
ZnCl +
3
H2
O2
IF5 +
2
5
SO2
HC2H3O2
OH- 
Mn(OH) 2
Ca(OH) 2 
H2SO4 +
Na2CO3 +
2 KBr
O2 
2
HCl 
2
Balanced
NH3
HCl 
2
CaSO3
CaSO4 +
2
NaCl +
2
H2 O
CO2 +
H2 O
Complete the following reactions (include Type of reaction & state of matter for the products
(remember to refer to the solubility rules)):
2 C4H10(g) +
2 HCl(aq)
K2CrO4(aq) +
2 AgNO3(aq) +
2 H2(g) +
13 O2(g) 
H2(g)
8 CO2(g) +
+
Cl2(g)
Ba(NO3)2(aq) 
Cu2+(s) 
O2(g) 
2
10
H2O(l) Combustion
Decomposition
BaCrO4(s) +
Cu(NO3)2(aq)
2 KNO3(aq)
+
2 Ag(s)
Double Displacement
Single Displacement
H2O(l) Synthesis
Give the oxidation number/ionic charge (include symbol) for the following items:
S2- Sulfur
Pb4+ Lead (IV)
Cd2+ Cadmium
Br- Bromine
Rb+ Rubidium
N3- Nitrogen
SO42- Sulfate
PO33- Phosphite
NO3- Nitrate
CO32- Carbonate
C2H3O2- Acetate
OH- Hydroxide
BALANCING EQUATIONS PRACTICE PROBLEMS
Write the compound formula for the following:
Barium chloride
BaCl2
Ammonium carbonate
(NH4)2CO3
Sodium nitrate
NaNO3
Tin (IV) oxide
SnO2
Barium oxide
BaO
Write the chemical name for the following compound formulas:
Fe(OH)3
Iron (III) hydroxide
K3Fe(CN)6
Potassium ferricyanide
Mg3(PO4)2
Magnesium phosphate
NaCl
Sodium Chloride
KI
Potassium iodide
Al(IO3)3
Aluminum iodate
Cu2SO4
Copper (I) sulfate
For the following indicate if the reaction WILL or WILL NOT occur (refer to the activity series):
Ag(s) + CuSO4(aq)  No Reaction (Will Not)
Mg(s) + HCl(aq)  Reaction (Will)
Al(s) + Pb(NO3)2(aq)  Reaction (Will)
Lead + Aluminum nitrate  No Reaction (Will Not)
Tin + Iron (III) nitrate No Reaction (Will Not)
What do the following items tell us and where are they located?
Coefficient: Located before the symbol, tells number of substances
Subscript: located at bottom right of symbol, tells number of atoms
Superscript: located at upper right of symbol, tells ionic charge/oxidation number