Question

химическая цепочка ca(oh)2>caco3>ca(hco3)2>caco3>cao>cacl2

Answer 1

Ca(OH)2 + H2CO3 = CaCO3 + 2H2O

CaCO3 + H2CO3 = Ca(HCO3)2

Ca(HCO3)2 (t)= CaCO3 + H2O + CO2

CaCO3 (t)= CaO + CO2

CaO + 2HCl = CaCl2 + H2O