Question

Give balanced equations for the preparation of the following salts:

1. Calcium oxide → Calcium chloride → Calcium carbonate

2. Zinc sulphide Zn→ Zinc sulphate

3. Iron (II) chloride ← Fe→ Iron (III) chloride

4.  Lead (II) oxide → Lead nitrate→ Lead sulphate

5. Copper (II) oxide → Copper (II) sulphate ←Copper (II)hydroxide

Answer 1

1. CaO + 2HCl  →  CaCl₂ + H₂O

2. Zn + S  →  ZnS

3. Fe + 2HCl  →  FeCl₂ + H₂

4. PbO + 2HNO₃  →  Pb(NO₃)₂ + H₂O

5. CuO + H₂SO₄   →  CuSO₄+ H₂O