Объяснение:
а) Ca(NO₃)₂ + K₂CO₃ = CaCO₃↓ + 2KNO₃
Ca²⁺+2NO₃⁻ + 2K⁺+CO₃²⁻ = CaCO₃↓ + 2K⁺+2NO₃⁻
Ca²⁺+CO₃²⁻ = CaCO₃↓
б) Fe(OH)₂ + 2HCl = FeCl₂ + 2H₂O
Fe(OH)₂ + 2H⁺+2Cl⁻ = Fe²⁺+2Cl⁻ + 2H₂O
Fe(OH)₂ + 2H⁺ = Fe²⁺ + 2H₂O
в) Na₂CO₃ + 2HNO₃ = 2NaNO₃ + H₂O + CO₂↑
2Na⁺+CO₃²⁻ + 2H⁺+2NO₃⁻ = 2Na⁺+2NO₃⁻ + H₂O + CO₂↑
CO₃²⁻ + 2H⁺ = H₂O + CO₂↑
Объяснение:
а) Ca(NO₃)₂ + K₂CO₃ = CaCO₃↓ + 2KNO₃
Ca²⁺+2NO₃⁻ + 2K⁺+CO₃²⁻ = CaCO₃↓ + 2K⁺+2NO₃⁻
Ca²⁺+CO₃²⁻ = CaCO₃↓
б) Fe(OH)₂ + 2HCl = FeCl₂ + 2H₂O
Fe(OH)₂ + 2H⁺+2Cl⁻ = Fe²⁺+2Cl⁻ + 2H₂O
Fe(OH)₂ + 2H⁺ = Fe²⁺ + 2H₂O
в) Na₂CO₃ + 2HNO₃ = 2NaNO₃ + H₂O + CO₂↑
2Na⁺+CO₃²⁻ + 2H⁺+2NO₃⁻ = 2Na⁺+2NO₃⁻ + H₂O + CO₂↑
CO₃²⁻ + 2H⁺ = H₂O + CO₂↑