Ca + H₂ ==(t°)==> CaH₂
CaH₂ + 2*H₂O ===> Ca(OH)₂ + 2*H₂
Ca(OH)₂(избыток!) + CO₂(р-р) ===> CaCO₃ + H₂O
1. CaCO₃ ==(t°)==> CaO + CO₂ (разложение)
CaO + SO₃ ===> CaSO₄
2. CaCO₃ + CO₂ + H₂O ===> Ca(HCO₃)₂
Ca(HCO₃)₂ + Ca(OH)₂(конц.) ===> 2*CaCO₃ + 2*H₂O
CaCO₃ + 2*HCl ===> CaCl₂ + H₂O + CO₂
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Verified answer
Ca + H₂ ==(t°)==> CaH₂
CaH₂ + 2*H₂O ===> Ca(OH)₂ + 2*H₂
Ca(OH)₂(избыток!) + CO₂(р-р) ===> CaCO₃ + H₂O
1. CaCO₃ ==(t°)==> CaO + CO₂ (разложение)
CaO + SO₃ ===> CaSO₄
2. CaCO₃ + CO₂ + H₂O ===> Ca(HCO₃)₂
Ca(HCO₃)₂ + Ca(OH)₂(конц.) ===> 2*CaCO₃ + 2*H₂O
CaCO₃ + 2*HCl ===> CaCl₂ + H₂O + CO₂