Question

write balanced equation on concentrated hot nitric acid on copper
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Answer 1

• 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