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Why Does Copper And Nitric Acid Turn Blue? [Solved]
The reaction that occurs is a redox reaction. The Copper metal (Cu 0)on the copper pennies is oxidized in concentrated nitric acid to produce Cu2+ ions. Copper is easily oxidized to Cu2+, which is blue in aqueous solutions (water) so you should see the solution turn blue as the copper penny reacts.3 Jan 2009
Reaction of copper with nitric acid
Declan Fleming shows how
Copper Penny reacting with Nitric Acid
This is a 1969
DSE07E1 - REDOX reaction between copper metal and concentrated nitric acid
Adding