When calcium carbonate is added to hydrochloric acid, calcium chloride carbon dioxide, and water are produced. Caco,(s) + 2 HCl(aq) - CaC1, (aq) + H2O(l) + CO. (8) - How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate in combined with 140 g of hydrochloric acid? mass of Cuci: 8 ich reactant is in excess? HCI , How many grams of the excess reactant will remain after the reaction is complete? miss of excess reactant: 8