CaCO3-CaO-Ca (OH2)-CaCl2-Ca (PO4)2

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This is the chemical transformation of calcium carbonate (CaCO3) into various calcium compounds:

CaCO3 (Calcium carbonate) decomposes to CaO (Calcium oxide) through the process of calcination.CaO (Calcium oxide) reacts with water (H2O) to form Ca (OH)2 (Calcium hydroxide) through the process of hydration.Ca (OH)2 (Calcium hydroxide) can react with hydrochloric acid (HCl) to form CaCl2 (Calcium chloride).Ca (OH)2 (Calcium hydroxide) can also react with phosphoric acid (H3PO4) to form Ca3(PO4)2 (Calcium phosphate).