SCH3U Name:
Date: _______
Unit Two Test
For each of the following word equations:
a) Write the chemical equation. Include all physical states.
b) Balance the chemical equation.
c) State the type of chemical reaction.
[Synthesis, Decomposition, Single Displacement, or Double Displacement]
1. Solid magnesium + nitric acid reacts to yield magnesium nitrate solution + hydrogen gas.
2. Sodium hydroxide solution + sulfuric acid react to produce water +
aqueous sodium sulfate.
3. Solid carbon reacts with oxygen in the presence of heat to form carbon dioxide gas.
4. Zinc + iron (III) chloride solution react to give iron + a salt solution.
5. Lead (II) chloride solution + calcium sulfate solution react to form a precipitate of
lead (II) sulfate and a salt in solution.
6. Water is decomposed by electrolysis to form two gases.
7. The combustion of sodium produces solid sodium oxide.
8. Magnesium + acetic acid react to form a gas and magnesium acetate solution.
9. Barium hydroxide solution + calcium chloride solution react to yield a precipitate
and barium chloride solution.
10. Solid calcium carbonate when heated yields calcium oxide solid + carbon dioxide.
11. Oxygen and hydrogen are heated to synthesize water vapour.
12. Copper (II) oxide solution is decomposed in the presence of solid carbon to form
copper and carbon dioxide.
13. Carbon solid and water react to form hydrogen and carbon monoxide gas.
14. Nitrogen dioxide gas in the presence of heat is broken down to nitrogen and oxygen.
15. Hydrogen sulfide solution + bromine liquid react to produce sulfur and
hydrogen bromide gas.
16. Copper is reacted with oxygen to slowly yield copper (I) oxide solid.
17. Barium hydroxide solution + sodium sulfate solution react to form
barium sulfate precipitate and a basic solution.
Date: _______
Unit Two Test
For each of the following word equations:
a) Write the chemical equation. Include all physical states.
b) Balance the chemical equation.
c) State the type of chemical reaction.
[Synthesis, Decomposition, Single Displacement, or Double Displacement]
1. Solid magnesium + nitric acid reacts to yield magnesium nitrate solution + hydrogen gas.
2. Sodium hydroxide solution + sulfuric acid react to produce water +
aqueous sodium sulfate.
3. Solid carbon reacts with oxygen in the presence of heat to form carbon dioxide gas.
4. Zinc + iron (III) chloride solution react to give iron + a salt solution.
5. Lead (II) chloride solution + calcium sulfate solution react to form a precipitate of
lead (II) sulfate and a salt in solution.
6. Water is decomposed by electrolysis to form two gases.
7. The combustion of sodium produces solid sodium oxide.
8. Magnesium + acetic acid react to form a gas and magnesium acetate solution.
9. Barium hydroxide solution + calcium chloride solution react to yield a precipitate
and barium chloride solution.
10. Solid calcium carbonate when heated yields calcium oxide solid + carbon dioxide.
11. Oxygen and hydrogen are heated to synthesize water vapour.
12. Copper (II) oxide solution is decomposed in the presence of solid carbon to form
copper and carbon dioxide.
13. Carbon solid and water react to form hydrogen and carbon monoxide gas.
14. Nitrogen dioxide gas in the presence of heat is broken down to nitrogen and oxygen.
15. Hydrogen sulfide solution + bromine liquid react to produce sulfur and
hydrogen bromide gas.
16. Copper is reacted with oxygen to slowly yield copper (I) oxide solid.
17. Barium hydroxide solution + sodium sulfate solution react to form
barium sulfate precipitate and a basic solution.
