Question

Complete and balance the following equations, and identify oxidizing and reducing agents:?
A)S(s) + HNO3(aq) → H2SO3(aq) + N2O(g) (acid solution)

Answer 1

The balanced chemical reaction is expressed as:

S + 2 HNO3 + 6H+ -----> H2SO3 + N2O + 3H2O

The oxidizing agent is the atom that was reduced which is H+. The reducing agent is the atom that was oxidizes which is S.