Which of the Following Equations Describes the Reaction of Copper

Multiple Choice

Which of the following equations describes the reaction of copper metal with concentrated nitric acid?

A) 4Cu(s) + 10H₃O⁺(aq) + NO₃^-(aq) → 4Cu²⁺(aq) + NH₄⁺(aq) + 13H₂O(l)
B) 5Cu(s) + 12H₃O⁺(aq) + 2NO₃^-(aq) → 5Cu²⁺(aq) + N₂(g) + 18H₂O(l)
C) Cu(s) + 4H₃O⁺(aq) + 2NO₃^-(aq) → Cu²⁺(aq) + 2NO₂(g) + 6H₂O(l)
D) 3Cu(s) + 8H₃O⁺(aq) + 2NO₃^-(aq) → 3Cu²⁺(aq) + 2NO(g) + 12H₂O(l)
E) 4Cu(s) + 10H₃O⁺(aq) + 2NO₃^-(aq) → 4Cu²⁺(aq) + N₂O(g) + 15H₂O(l)