1) 2Ca + O₂ →t°→ 2CaO
2) CaO + H₂O → Ca(OH)₂
3) CaO + 2HCl → CaCl₂ + H₂O
4) Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O
1) 2Ca + O₂ →t°→ 2CaO
2) CaO + H₂O → Ca(OH)₂
3) CaO + 2HCl → CaCl₂ + H₂O
4) Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O