Ответ:
Объяснение:
а)
CuCl₂ + 2 NaOH = Сu(OH)₂↓ + 2NaCl
Cu²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂↓ + 2Na⁺ + 2Cl⁻
Cu²⁺ + 2OH⁻ = Cu(OH)₂↓
б)
Na₂CO₃ + 2HCl = 2NaCl + H₂O + CO₂↑
2Na⁺ + CO₃²⁻ + 2H⁺ + 2Cl⁻ = 2Na⁺ + 2Cl⁻ + H₂O + CO₂↑
2H⁺ + CO₃²⁻ = H₂O + CO₂↑
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Verified answer
Ответ:
Объяснение:
а)
CuCl₂ + 2 NaOH = Сu(OH)₂↓ + 2NaCl
Cu²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂↓ + 2Na⁺ + 2Cl⁻
Cu²⁺ + 2OH⁻ = Cu(OH)₂↓
б)
Na₂CO₃ + 2HCl = 2NaCl + H₂O + CO₂↑
2Na⁺ + CO₃²⁻ + 2H⁺ + 2Cl⁻ = 2Na⁺ + 2Cl⁻ + H₂O + CO₂↑
2H⁺ + CO₃²⁻ = H₂O + CO₂↑