CaCO3 + 2 HCl → CaCl2 + H2O + CO2 is the balanced equation of the reaction.
When hydrochloric acid reacts with solid calcium bicarbonate, it produce water, carbon dioxide, and calcium chloride. The carbonates turn into carbondioxide, the calcium bonded with chloride and hydrogen reacts with oxygen of carbonates.
So we can conclude that CaCO3 + 2 HCl → CaCl2 + H2O + CO2 is the balanced equation of the reaction.
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