Question

what are the changes that take place when dilute HCl is added to a small amount of copper oxide in a beaker?​

Answer 1

Answer:

When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish-yellow gas is released and a bluish-green solution is formed. Since the metal oxides such as a Copper oxide (CuO) are basic in nature, it reacts with acids such as HCl to form the corresponding salt and water.