This report was about the reaction of Calcium Carbonate (CaCO3) and Hydrochloric Acid (HCl). mass of CaCl, Which reactant is in excess? Caco,(8) + 2 HCl(aq) CaCl, (aq) + H2O(l) + CO2(8) How many grams of calcium chloride will be produced when 26.0 g of calcium carbonate is combined with 15.0 g of hydrochloric acid? Calcium carbonate dissolves into Ca(2+) and carbonate (CO3)(2-) ions. Balance the Chemical Equation for the reaction of calcium carbonate with hydrochloric acid: CaCO3+ HCl -> CaCl2 + CO2 + H2O To balance chemical equations we need to look at each element individually on both sides of the equation. CaCO₃ (s) + 2HCl (aq) → CaCl₂ (aq) + CO₂ (g) + H₂O (l) Calcium carbonate reacts with acids to produce a calcium salt, water and carbon dioxide. Read More. The calcium carbonate will dissolve in the acid producing CO2 gas. It is this reaction that is responsible for limestone fizzing when dilute hydrochloric acid is placed on its surface. Calcium Carbonate was solid and The combination of the acid naturally produced by the stomach and the base ingested in the form of calcium carbonate, either through a food source or a mineral supplement, will cause the neutralization of both compounds and the creation of by-products that are neither acidic nor basic. When H(+) combines with carbonate (CO3)(2-), you get a mix of ions, but if you have enough acid, you primarily get H2CO3, carbonic acid. Hydrochloric acid dissolves into H(+) and Cl(-). When the CaCO3 was added to HCl, they react to produce Calcium Chloride (CaCl2), Carbon Dioxide (CO2) and water (H2O). When Ca(2+) and Cl(-) form CaCl2, it dissolves again (it is very soluble.) In this investigation the substance that is formed is Calcium Chloride, Water and Carbon Dioxide. When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. The symbol equation for this is: CaCo3 Ca2+ + Co32- Hcl H+ + Cl- Add these all together to get CaCO3 (s) + 2H+ (aq) --> Ca++ (aq) + H2O + CO2 (g) The rate of reaction is just. When calcium carbonate and hydrochloric acid meet in the stomach, a chemical reaction occurs.