Question

Ca-CaO-Ca(OH)2/стрелка/CaCO3/стрелка/Ca(HCO3)2

Answer 1

2Ca+ O2-> 2CaO
CaO + H2O -> Ca(OH)2
Ca(OH)2 + CO2 -> CaCO3 + H2O
CaCO3 + CO2 + H2O -> Ca(HCO3)2