Question

Составить уравнения реакции: Ca →  CaH₂→ Ca(OH)2 → CaCO3 → → CaO → CaCl₂ → Ca

Answer 1

1. Ca + 2H₂ → CaH₂
2. CaH₂ + 2H₂O → Ca(OH)₂ + 2H₂
3. Ca(OH)₂ + CO₂ → CaCO₃ + H₂O
4. CaCO₃ → CaO + CO₂
5. CaO + 2HCl → CaCl₂ + H₂O
6. CaCl₂ + H₂O → Ca(OH)₂ + 2HCl
7. 2Ca + O₂ → 2Ca