For the following REDOX reaction, state the oxidation number for each element in the reaction. State which element is being oxidized and which element is being reduced, as well as how you know. State which element is the oxidizing agent and which element is the reducing agent, as well as how you know. MnO∨2 + H∨2C∨2O∨4 + H∨2SO∨4 ⇒ MnSO∨4 + CO∨2 + H∨2O

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.