Question

Write balanced equations for the following word equations:

Potassium nitrate → Potassium nitrite + Oxygen
Calcium + Water → Calcium hydroxide + Hydrogen
Iron + Hydrochloric acid → Iron (II) chloride + Hydrogen

Answer 1

The balanced chemical equations for the decomposition of potassium nitrate, the reaction of calcium with water, and the reaction of iron with hydrochloric acid have been provided.

Step-by-step explanation:

Writing balanced chemical equations is a fundamental skill in chemistry. Here are the balanced equations for the provided word equations:

• The decomposition of potassium nitrate into potassium nitrite and oxygen:
  2KNO3 (s) → 2KNO2 (s) + O2 (g)
• The reaction of calcium with water to produce calcium hydroxide and hydrogen gas:
  Ca (s) + 2H2O (l) → Ca(OH)2 (aq) + H2 (g)
• The reaction of iron with hydrochloric acid to form iron (II) chloride and hydrogen gas:
  Fe (s) + 2HCl (aq) → FeCl2 (aq) + H2 (g)