1)
2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
2)
CaCO3 = CaO + CO2
CaO + 2HCl = CaCl2 + H2O
3)
Ca + 2H2O = Ca(OH)2 + H2
1)
2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
2)
CaCO3 = CaO + CO2
CaO + 2HCl = CaCl2 + H2O
3)
Ca + 2H2O = Ca(OH)2 + H2