NaOH + HCl = NaCl + H₂O;
Na⁺ + OH⁻ + H⁺ + Cl⁻ = Na⁺ + Cl⁻ + H₂O;
OH⁻ + H⁺ = H₂O.
LiCl + AgNO₃ = AgCl↓ + LiNO₃;
Li⁺ + Cl⁻ + Ag⁺ + NO₃⁻ = AgCl↓ + Li⁺ + NO₃⁻;
Cl⁻ + Ag⁺ = AgCl↓.
2KOH + H₂SO₄ = K₂SO₄ + 2H₂O;
2K⁺ + 2OH⁻ + 2H⁺ + SO₄²⁻ = 2K⁺ + SO₄²⁻ + 2H₂O;
2OH⁻ + 2H⁺ = 2H₂O;
OH⁻ + H⁺ = H₂O.
K₂SO₄ + Ba(OH)₂ = 2KOH + BaSO₄↓;
2K⁺ + SO₄²⁻ + Ba⁺² + 2OH⁻ = 2K⁺ + 2OH⁻ + BaSO₄↓;
SO₄²⁻ + Ba⁺² = BaSO₄↓.
Na₂CO₃ + H₂SO₄ = Na₂SO₄ + CO₂↑ + H₂O;
2Na⁺ + CO₃²⁻ + 2H⁺ + SO₄²⁻ = 2Na⁺ + SO₄²⁻ + CO₂↑ + H₂O;
CO₃²⁻ + 2H⁺ = CO₂↑ + H₂O.
CaO + 2HNO₃ = Ca(NO₃)₂ + H₂O;
CaO + 2H⁺ + 2NO₃⁻ = Ca⁺² + 2NO₃⁻ + H₂O;
CaO + 2H⁺ = Ca⁺² + H₂O.
3Mg(OH)₂ + 2H₃PO₄ = Mg₃(PO₄)₂↓ + 6H₂O;
3Mg⁺² + 6OH⁻ + 6H⁺ + 2PO₄³⁻ = Mg₃(PO₄)₂↓ + 6H₂O.
Al₂O₃ + 6HCl = 2AlCl₃ + 3H₂O;
Al₂O₃ + 6H⁺ + 6Cl⁻ = 2Al⁺³ + 6Cl⁻ + 3H₂O;
Al₂O₃ + 6H⁺ = 2Al⁺³ + 3H₂O.
CuCl₂ + 2KOH = 2KCl + Cu(OH)₂↓;
Cu⁺² + 2Cl⁻ + 2K⁺ + 2OH⁻ = 2K⁺ + 2Cl⁻ + Cu(OH)₂↓;
Cu⁺² + 2OH⁻ = Cu(OH)₂↓.
Al₂(SO₄)₃ + 3BaCl₂ = 3BaSO₄↓ + 2AlCl₃;
2Al⁺³ + 3SO₄²⁻ + 3Ba⁺² + 6Cl⁻ = 3BaSO₄↓ + 2Al⁺³ + 6Cl⁻;
3SO₄²⁻ + 3Ba⁺² = 3BaSO₄↓;
SO₄²⁻ + Ba⁺² = BaSO₄↓.
Fe(OH)₃ + H₃PO₄ = FePO₄↓ + 3H₂O;
Fe(OH)₃ + 3H⁺ + PO₄³⁻ = FePO₄↓ + 3H₂O.
K₂CO₃ + 2HNO₃ = 2KNO₃ + H₂O + CO₂↑;
2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + H₂O + CO₂↑;
CO₃²⁻ + 2H⁺ = H₂O + CO₂↑.
K₂S + 2HCl = 2KCl + H₂S↑;
2K⁺ + S²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ + 2Cl⁻ + H₂S↑;
S²⁻ + 2H⁺ = H₂S↑.
LiCl + H₂SO₄ = LiHSO₄ + HCl↑;
Li⁺ + Cl⁻ + 2H⁺ + SO₄²⁻ = Li⁺ + HSO₄⁻ + HCl↑;
Cl⁻ + 2H⁺ + SO₄²⁻ = HSO₄⁻ + HCl↑.
MgBr₂ + 2AgNO₃ = Mg(NO₃)₂ + 2AgBr↓;
Mg⁺² + 2Br⁻ + 2Ag⁺ + 2NO₃⁻ = Mg⁺² + 2NO₃⁻ + 2AgBr↓;
2Br⁻ + 2Ag⁺ = 2AgBr↓;
Br⁻ + Ag⁺ = AgBr.
Cu(OH)₂ + H₂SO₄ = CuSO₄ + 2H₂O;
Cu(OH)₂ + 2H⁺ + SO₄²⁻ = Cu⁺² + SO₄²⁻ + 2H₂O;
Cu(OH)₂ + 2H⁺ = Cu⁺² + 2H₂O.
Na₂O + 2HCl = 2NaCl + H₂O;
Na₂O + 2H⁺ + 2Cl⁻ = 2Na⁺ + 2Cl⁻ + H₂O
Na₂O + 2H⁺ = 2Na⁺ + H₂O.
Al₂S₃ + 6H₂O = 2Al(OH)₃↓ + 3H₂S↑;
Так и остаётся.
3LiOH + H₃PO₄ = Li₃PO₄↓ + 3H₂O;
3Li⁺ + 3OH⁻ + 3H⁺ + PO₄³⁻ = Li₃PO₄↓ + 3H₂O.
3KOH + H₃PO₄ = K₃PO₄ + 3H₂O;
3K⁺ + 3OH⁻ + 3H⁺ + PO₄³⁻ = 3K⁺ + PO₄³⁻ + 3H₂O;
3OH⁻ + 3H⁺ = 3H₂O;
OH⁻ + H⁺ = H₂O.