Cu. (s)+HCl(aq)

1 answer

Copper will not react with hydrochloric acid for the simple reason it's below hydrogen in the reactivity series. So, copper cannot replace the hydrogen in HCl to form CuCl2 . Hence, when copper (Cu) reacts with hydrochloric acid (HCl) there will be no reaction.

Not so, with HNO3 -- if you've ever dropped a penny into nitric acid ...