Ответ:

Объяснение:

3NaOH + H₃PO₄ = Na₃PO₄ + 3H₂O

3Na⁺ + 3OH⁻ + 3H⁺ + PO₄³⁻ = 3Na⁺ + PO₄³⁻ + 3H₂O

OH⁻ + H⁺ = H₂O

FeCl₂ + 2KOH = Fe(OH)₂↓ + 2KCl

Fe²⁺ + 2Cl⁻ + 2K⁺ + 2OH⁻ = Fe(OH)₂↓ + 2K⁺ + 2Cl⁻

Fe²⁺ + 2OH⁻ = Fe(OH)₂↓

Zn(OH)₂+ 2HCl = 2ZnCl + 2H₂O

Zn²⁺ +2OH⁻ +2H⁺ +2Cl⁻ = Zn²⁺ +2Cl⁻ +2H₂O

2OH⁻ +2H⁺ = 2H₂O

K₂CO₃ + 2HNO₃ = 2KNO₃ + H₂O + CO₂

2K⁺ + CO₃²⁻ + 2H⁺ + 2NO₃⁻ = 2K⁺ + 2NO₃⁻ + H₂O + CO₂

CO₃²⁻ + 2H⁺ = H₂O + CO₂

3Mg(NO₃)₂ + 2K₃PO₄ = Mg₃(PO₄)₂↓ + 6KNO₃

3Mg²⁺  + 6NO₃⁻ + 6K⁺ + 2PO₄³⁻ = Mg₃(PO₄)₂↓ + 6K⁺ + 6NO₃⁻

3Mg²⁺  + 2PO₄³⁻ = Mg₃(PO₄)₂↓