Research questions: When the temperatures is digressed, or increased will the CaCO3 and HCI have a faster reaction? What happens when the reaction is happening? What happens when Caco3 and HCI meet each other? Answers: When calcium mineral carbonate is heated up it first responds to the acid then after a while it becomes CaCO3 into calcium Hydroxide. Its created when ions bonds respond to the acid which makes electric charge so it heats up. When CaCO3 and HCI reacts, it sorts calcium chloride, water and skin tightening and. The reaction between both chemical substances requires two parts HCI and CaCO3. The effect is swift and enthusiastic at high concentrations. Large part credited high affinity of calcium ions for chloride ions Depending on the heat when Calcium chloride and Hydrochloric acid meet.