2HBr + Mg(OH)₂ = MgBr₂ + 2H₂O
2H⁺ + 2Br⁻ + Mg(OH)₂ = Mg²⁺ + 2Br⁻ + 2H₂O
2H⁺ +
Mg(OH)₂ = Mg²⁺ + 2H₂O
2KOH +
Zn(NO₃)₂ = Zn(OH)₂ + 2HNO₃
2K⁺ + 2OH⁻ + Zn²⁺ + 2NO₃⁻ = Zn(OH)₂ + 2H⁺ + 2NO₃⁻
2OH⁻ +
Zn²⁺ = Zn(OH)₂
Na₂SO₄ +
Ba(NO₃)₂ = BaSO₄ + 2NaNO₃
2Na⁺ + SO₄²⁻ +
Ba²⁺ + 2NO₃ =
BaSO₄ + 2Na⁺ + 2NO₃⁻
SO₄²⁻ + Ba²⁺ = BaSO₄