What Is Calcium Carbonate's Reaction With Hydrochloric Acid?

By Staff WriterLast Updated Apr 2, 2020 2:58:15 PM ET

Calcium carbonate reacts with hydrochloric acid to form calcium chloride, water and carbon dioxide. The reaction between these two compounds requires two parts hydrochloric acid to one part calcium chloride. This reaction is fairly rapid and energetic at high concentrations, in large part due to the high affinity of calcium ions for chloride ions.