CuO+HCI

When CuO (copper oxide) reacts with HCl (hydrochloric acid), it forms CuCl2 (copper chloride) and H2O (water) according to the following chemical equation:

CuO + 2HCl -> CuCl2 + H2O

The reaction is a displacement reaction, where copper oxide reacts with hydrochloric acid to produce copper chloride and water.