В молекулярной и ионной формах al2(so4)3+na3po4 и pbohno3+naoh
Al₂(SO₄)₃ + 2Na₃PO₄ = 3Na₂SO₄ + 2AlPO₄↓ 2Al³⁺ + 3SO₄²⁻ + 6Na⁺ + 2PO₄⁻ = 6Na⁺ + 3SO₄²⁻ + 2AlPO₄↓ 2Al³⁺ + 2PO₄⁻ = 2AlPO₄↓ (PbOH)NO₃ + NaOH = Pb(OH)₂↓ + NaNO₃ (PbOH)⁺ + NO₃⁻ + Na⁺ + OH⁻ = Pb(OH)₂↓ + Na⁺ + NO₃⁻ (PbOH)⁺ + OH⁻ = Pb(OH)₂↓ .