CHEMICAL
EQUATIONS
Practice
Problems
Part I: Identify the type of reaction and write a balanced chemical equation for each of the following reactions.
1. Zinc + Sulfur ® zinc sulfide
2. potassium chloride + silver nitrate ® silver chloride(s) + potassium nitrate
3. calcium oxide + water ® calcium hydroxide
4. sodium hydroxide + hydrochloric acid ® sodium chloride + water
5. magnesium bromide + chlorine ® magnesium chloride + bromine
6. sodium chloride + sulfuric acid ® sodium sulfate + hydrogen chloride(g)
7. aluminum + iron(III) oxide ® aluminum oxide + iron
8. ammonium nitrite ® nitrogen(g) + water
9. silver nitrate + nickel ® nickel(II) nitrate + silver(s)
10. hydrogen + bromine ® hydrogen bromide(g)
Part II: Complete and balance the following chemical equations.
Composition reactions:
1. sodium + iodine ®
2. calcium + oxygen ®
3. hydrogen + chlorine ®
Decomposition reactions:
4. nickel(II) chlorate ®
5. barium carbonate ®
6. zinc hydroxide ®
Replacement reactions:
7. aluminum +
sulfuric acid ®
8. potassium iodide +
chlorine ®
9. iron + copper(II) nitrate ® iron(II) nitrate +
Metathesis reactions:
10. silver nitrate +
zinc chloride ®
11. copper(II) hydroxide +
acetic acid ®
12. iron(II) sulfate
+ ammonium sulfide ®