How does calcium carbonate and acid react?

Calcium carbonate is the principal mineral component of limestone. Its chemical and physical properties lie behind the modern-day uses of limestone as well as the unique limestone landscapes of the countryside. read more

Calcium carbonate reacts with acids to produce a calcium salt, water and carbon dioxide: Calcium carbonate + Hydrochloric acid → Calcium chloride + Water + Carbon dioxide; The rate of reaction is determined by measuring the volume of carbon dioxide produced as the reaction goes on. read more

Stomach acid is hydrochloric acid, so calcium carbonate is commonly used as an antacid because the products of this reaction are harmless to humans. The body uses a somewhat similar compound, bicarbonate, to neutralize stomach acid on its own. read more

Normally, calcium carbonate is not soluble in water, but when it is reacted with hydrochloric acid it forms calcium chloride, which is soluble. The overall reaction is: calcium carbonate + hydrochloric acid = calcium chloride + carbon dioxide + water Hopefully this answers your question and makes sense to you. read more

So the reaction in words is. calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide. More generally. An acid + a carbonate (or a hydrogen carbonate) → a salt + water + carbon dioxide. To write it in symbols, it is important to ensure you have the correct formula for everything, and to then balance it correctly. read more