PRACTICE NAMING & BALANCING
Translate each word equation into a chemical equation. When the
formulas are written correctly, the equations will be balanced.
Example: Two potassium nitrate and one hydrogen carbonate react to form one potassium carbonate and two
hydrogen nitrate.
2
KNO3
+ 1
H2CO3
à
Balance Check:
Atom Count (Reactants)
1
K2CO3
+ 2
HNO3
Is the equation balanced?
Yes / No
Atom Count (Products)
Potassium: 2, Nitrogen: 2, Oxygen: 9, Hydrogen: 2, Carbon: 1
Potassium: 2, Nitrogen: 2, Oxygen: 9, Hydrogen: 2, Carbon: 1
6. Two silver oxide units decompose into four silver atoms and one oxygen molecule.
2 _______________
à
Balance Check:
Atom Count (Reactants)
4 _______________ + 1 _______________
Is the equation balanced?
Yes / No
Atom Count (Products)
Silver: _____ Oxygen: _____
Silver: _____ Oxygen: _____
7. One selenium hexachloride molecule reacts with one oxygen molecule to produce one selenium dioxide molecule
and three chlorine molecules.
1 _______________ + 1 _______________
à
Balance Check:
Atom Count (Reactants)
1 _______________ + 3 _______________
Is the equation balanced?
Yes / No
Atom Count (Products)
Selenium: _____ Chlorine: _____ Oxygen: _____
Selenium: _____ Chlorine: _____ Oxygen: _____
8. Four ammonium phosphate and three lead (IV) nitrate react to form one lead (IV) phosphate and twelve
ammonium nitrate.
4 _______________ + 3 _______________
à
Balance Check:
Atom Count (Reactants)
1 _______________ + 12 _______________
Is the equation balanced?
Yes / No
Atom Count (Products)
Nitrogen: _____ Hydrogen: _____ Phosphorus: _____
Nitrogen: _____ Hydrogen: _____ Phosphorus: _____
Oxygen: _____ Lead: _____
Oxygen: _____ Lead: _____
9. Two boron trifluoride molecules react with three units of lithium sulfate to produce one boron sulfate and six
lithium fluoride.
2 _______________ + 3 _______________
Balance Check:
Atom Count (Reactants)
à
1 _______________ + 6 _______________
Is the equation balanced?
Yes / No
Atom Count (Products)
Boron: _____ Fluorine: _____ Lithium: _____
Boron: _____ Fluorine: _____ Lithium: _____
Sulfur: _____ Oxygen: _____
Sulfur: _____ Oxygen: _____
Name ______________________________ Date __________
PRACTICE BALANCING
Write in coefficients to balance the following equations.
1.
_____ Fe
+
_____ H2SO4
à
_____ Fe2(SO4)3
Atom Count (Reactants)
2.
_____ C2H6
+
_____ O2
_____ H2O
+
_____ SO3
à
_____ H2O
_____ SnO2
+
_____ H2
à
_____ HCl
+
_____ NH3
Atom Count (Reactants)
_____ CO2
_____ H2SO4
Atom Count (Products)
à
Atom Count (Reactants)
5.
+
Atom Count (Products)
Atom Count (Reactants)
4.
_____ H2
Atom Count (Products)
Atom Count (Reactants)
3.
+
_____ Sn
+
_____ H2O
Atom Count (Products)
à
_____ NH4Cl
Atom Count (Products)