MgSO₄ + 2NaOH = Na₂SO₄ + Mg(OH)₂↓
Mg²⁺ + SO₄²⁻ + 2Na⁺ + 2OH⁻ = 2Na⁺ + SO₄²⁻ + Mg(OH)₂↓
Mg²⁺ + 2OH⁻ = Mg(OH)₂↓
Mg(OH)₂ + 2HNO₃ = Mg(NO₃)₂ + 2H₂O
Mg(OH)₂ + 2H⁺ + 2NO₃⁻ = Mg²⁺ + 2NO₃⁻ + 2H₂O
Mg(OH)₂ + 2H⁺ = Mg²⁺ + 2H₂O
Mg(NO₃)₂ + Na₂CO₃ = MgCO₃↓ + 2NaNO₃
Mg²⁺ + 2NO₃⁻ + 2Na⁺ + CO₃²⁻ = MgCO₃↓ + 2Na⁺ + 2NO₃
Mg²⁺ + CO₃²⁻ = MgCO₃↓