Which of the following represents the balanced equation for the reaction of copper with concentrated trioxonitrate (V) acid?

Question 1 Report

Cu (s) + 2HNO 3(aq) → Cu (NO 3) 2(aq) + H 2(g)

Cu (s) + 4HNO 3(aq) → Cu (NO 3) 2(aq) + 2H 2O (1) + 2NO 2(g)

3Cu (s) + 8HNO3(aq) → 3Cu (NO3)2(aq) + 4H2O(1) + 2NO(g)

3Cu(s) + 4HNO3(aq) → 3Cu(NO 3) 2(aq) + 2H 2O (1) + 2NO (g)

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