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Because calcium carbonate is a base, depending on the pH of the base, it will either increase or decrease the pH of the calcium carbonate very slightly.It will probably have â¦ little to no noticeable effects. 3 people found this useful. Graham Howarth.t is found naturally in limestone and  in seashells.   â¦    vCalcium carbonate reacts with acids, releasing carbon  dioxide:   v    vCalcium carbonate will react with water that is saturated with  carbon dioxide to form the soluble calcium bicarbonate.
It is used medicinally, and as a food additive. Description: Calcium carbonate is the main component in egg shells. It is also a main component in the shells of marine animals and snails.1 However, most of the calcium carbonate used industrially comes from mining. The chemical formula of calcium carbonate is CaCO3.