Balance the following reaction. Which compound is the oxidizing agent in the reaction below? Which is reducing agent? Show oxidation # and change in oxidation number for each element that changes?
Copper reacts with nitric acid to produce copper(II) nitrate, nitrogen dioxide gas, and water.
____Cu(s) + ___HNO3(aq) → ___Cu(NO3)2(aq) + ___NO2(g) + ___ H2O