Calcium hydrochloric acid is not a valid chemical compound. It's likely you're referring to the reaction between calcium metal (Ca) and hydrochloric acid (HCl), which produces calcium chloride (CaCl₂) and hydrogen gas (H₂). Here's the balanced chemical equation:

Ca(s) + 2 HCl(aq) → CaCl₂(aq) + H₂(g)

Let me know if you have any other questions.