Question

Copper is heated with (1:1) HNO3 acid — what happens?​

Answer 1

Answer:

Copper and Nitric Acid. ... Nitric acid reacts with copper according to the reaction: 4 HNO3(l) + Cu(s) ==> Cu(NO3)2(s and aq) + 2 NO2(g) + 2 H2O(l) The copper nitrate salt that forms is a deep blue color. The nitrogen dioxide is a maroon vapor.

Answer 2

Explanation:

Cu +2HNO3 -------> Cu(NO3)2 +H2

so .. when a metal reacts with acid it releases hydrogen gas