If {m} g оf CаCO3 (100.09 g/mоl) is аdded tо excess hydrochloric аcid, how many moles of carbon dioxide gas can be produced? Answer to 2 decimal places. 2HCl(a) +CaCO3(s)→ H2O(l)+CaCl2(aq)+CO2(g){"version":"1.1","math":"2HCl(a) + CaCO3(s) → H2O(l) + CaCl2(aq)+CO2(g)"}