Language of Chemistry — Question 4

Question 4

Underline the incorrectly balanced compound in each equation & rewrite the correct equation.

1. 2Na + 3H₂O ⟶ 2NaOH + H₂

2. 4P + 4O₂ ⟶ 2P₂O₅

3. Fe₂O₃ + 2H₂ ⟶ 2Fe + 3H₂O

4. 2Al + 2H₂SO₄ ⟶ Al₂(SO₄)₃ + 3H₂

5. N₂ + 3H₂ ⇌ NH₃

6. ZnO + 3NaOH ⟶ Na₂ZnO₂ + H₂O

7. FeCl₃ + 3NH₄OH ⟶ 2NH₄Cl + Fe(OH)₃

8. FeS + 2HCl ⟶ 2FeCl₂ + H₂S

9. 3NH₃ + H₂SO₄ ⟶ (NH₄)₂SO₄

10. PbO₂ + 4HCl ⟶ PbCl₂ + H₂O + Cl₂