Acids and Bases

When copper metal reacts with concentrated nitric acid, SALT, WATER and GAS forms. What is the name of the gas?

Answers
Cu(s) + 4 HNO3(l) ==> Cu(NO3)2(s and aq) + 2 H2O(l) + 2 NO2(g)Copper + Conc. nitric acid ==> Copper nitrate + Water + Nitrogen Dioxide gasIn this equation, Copper and Nitric Acid react in the ratio 1:4. When the Nitric Acid is dilute rather than concentrated, they react in the ratio 3:8.
Joshua G.
23 November 2016
It forms nitrogen dioxide, I would be happy to help in any further chemistry problems you have and am up for tutoring sessions if wanted? I wouldn't charge much and I enjoy passing on my knowledge to other students :)
ellieharris2121
24 November 2016
Nitrogen dioxide NO2.  
mark_fairweather
02 January 2017
Cu(s) + conc. HNO3(aq)------> Cu(NO3)2 (aq) + H2O (l) + NO2(g)Name of gas NO2 is Nitrogen dioxide gas.
chemtutor1
28 February 2019
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