Ni²⁺ + SO₃²⁻ = NiSO₃↓
NiCl₂ + Na₂SO₃ = NiSO₃↓ + 2NaCl
Ni²⁺ + 2Cl⁻ + 2Na⁺ + SO₃²⁻ = NiSO₃↓ + 2Na⁺ + 2Cl⁻
Ni²⁺ + SO₃²⁻ = NiSO₃↓
NiCl₂ + Na₂SO₃ = NiSO₃↓ + 2NaCl
Ni²⁺ + 2Cl⁻ + 2Na⁺ + SO₃²⁻ = NiSO₃↓ + 2Na⁺ + 2Cl⁻