СO₂ + 2KOH = K₂CO₃ + H₂O
СO₂ + 2K⁺ + 2OH⁻ = 2K⁺ + CO₃²⁻ + H₂O
СO₂ + 2OH⁻ = CO₃²⁻ + H₂O
K₂CO₃ + 2HCl = 2KCl + CO₂ + H₂O
2K⁺ + CO₃²⁻ + 2H⁺ + 2Cl⁻ = 2K⁺ + 2Cl⁻ + CO₂ + H₂O
CO₃²⁻ + 2H⁺ = CO₂ + H₂O
KCl + AgNO₃ = AgCl + KNO₃
K⁺ + Cl ⁻ + Ag⁺ + NO₃⁻ = AgCl + K⁺ +NO₃⁻
Cl ⁻ + Ag⁺ = AgCl