1) K₂CO₃ + H₂SO₄ = K₂SO₄ + CO₂ + H₂O
2K⁺ + CO₃²⁻ + 2H⁺ + SO₄²⁻ = 2K⁺ + SO₄²⁻ + CO₂ + H₂O
2H⁺ + CO₃²⁻ = CO₂ + H₂O
FeCl₃ + 3AgNO₃ = Fe(NO₃)₃ + 3AgCl
Fe³⁺ + 3Cl⁻ + 3Ag⁺ + 3NO₃⁻ = Fe³⁺ + 3NO₃⁻ + 3AgCl
3Cl⁻ + 3Ag⁺ = 3AgCl
2)
MnCl₂ + H₂O = Mn(OH)Cl + HCl
Mn²⁺ + 2Cl⁻ + H₂O = Mn(OH)⁺ + Cl⁻ + H⁺ + Cl⁻
Mn²⁺ + H₂O = Mn(OH)⁺ + H⁺
Mn(OH)Cl + H₂O = Mn(OH)₂ + HCl
Mn(OH)⁺ + Cl⁻ + H₂O = Mn(OH)₂ + H⁺ + Cl⁻
Mn(OH)⁺ + H₂O = Mn(OH)₂ + H⁺ (кислая)
Na₂CO₃ + H₂O = NaHCO₃ + NaOH
2Na⁺ + CO₃²⁻ + H₂O = Na⁺ + HCO₃⁻ + Na⁺ + OH⁻
CO₃²⁻ + H₂O = HCO₃⁻ + OH⁻
NaHCO₃ + H₂O = NaOH + H₂CO₃
Na⁺ + HCO₃⁻ + H₂O = Na⁺ +OH ⁻ + H₂CO₃
HCO₃⁻ + H₂O = OH ⁻ + H₂CO₃ (щелочная)
3) в приложении
4) HCl, HNO, H₂SO₄, NaOH. KOH
