Question

Copper reacts with concentrated nitrate acid explane the following reaction giving their balanced chemical equation

Answer 1

Answer:

Explanation:

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

Nitric acid usually reacts with metals to liberate nitrogen oxides(NO2 , NO or N2O).

When it reacts with copper, either nitrogen dioxide gas or nitrogen oxide gas is liberated.

Following are the reactions :

• Reaction with Concentrated nitric acid

4HNO₃ (aq) + Cu (s)   →   Cu(NO₃)₂ (s) + 2H₂O (l) + 2NO₂ (g)

• Reaction with Dilute nitric acid

8HNO₃ (aq) + 3Cu (s)   →   3Cu(NO₃)₂ (s) + 4H₂O (l) + 2NO (g)