ZnSO₄ + 2NaOH = Zn(OH)₂↓ + Na₂SO₄
Zn²⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ = Zn(OH)₂↓ + 2Na⁺ + SO₄²⁻
Zn²⁺ + 2OH⁻ = Zn(OH)₂↓
AgNO₃ + NaCl = AgCl↓ + NaNO₃
Ag⁺ + NO₃⁻ + Na⁺ + Cl⁻ = AgCl↓ + Na⁺ + NO₃⁻
Ag⁺ + Cl⁻ = AgCl↓
Fe₂O₃ + 6HCl = 2FeCl₃ + 3H₂O
Fe₂O₃ + 6H⁺ + 6Cl⁻ = 2Fe³⁺ + 6Cl⁻ + 3H₂O
Fe₂O₃ + 6H⁺ = 2Fe³⁺ + 3H₂O