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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.
Calcium carbonate is the active ingredient in agricultural lime, and is created when calcium ions in hard water react with carbonate ions creating limescale.It is commonly used medicinally as a calcium supplement or as an antacid, but excessive consumption can be hazardous.alcium carbonate is a chemical compound with the formula Ca C O 3. It is formed by three main elements: carbon, oxygen and calcium. It is a common substance found in rocks in all parts of the world, and is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells.