CaCO3 → CO2 → CaCO3 → Ca(HCO3)2 → CaCl2

Question

CaCO3 → CO2 → CaCO3 → Ca(HCO3)2 → CaCl2

Answer 1

CaCO3--t-->CaO+CO2;
CO2+CaO---->CaCO3;
CaCO3+CO2+H2O----->Ca(HCO3)2;
Ca(HCO3)2+2HCl------>CaCl2+2H2O+2CO2;