1. 2Ca + O2 = 2CaO
2. CaO + H2O = Ca(OH)2
3. Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O
4. CaO + 2HCl = CaCl2 + H2O
5. Ca + 2H2O = Ca(OH)2 + H2
1. 2Ca + O2 = 2CaO
2. CaO + H2O = Ca(OH)2
3. Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O
4. CaO + 2HCl = CaCl2 + H2O
5. Ca + 2H2O = Ca(OH)2 + H2