Calcium carbonate (CaCO3) is an ionic compound made of a calcium cation and an anion consisting of one carbon atom and three oxygen atoms. CaCO3 is basic and reacts with acids to form water, a salt, and carbon dioxide. Because of its antacid properties, CaCO3 is the main ingredient in most stomach medicines.
In this simple demonstration, we're going to prove that seashells are made of CaCO3 by dissolving them in vinegar. The bubbles of CO2 that form during the chemical reaction are just the evidence we need.
Hmm... it seems nobody's added a conclusion for this experiment yet. You can suggest one here.