1. Balance the following redox reactions. Break your answer down into individual steps not just the final balanced numbers.
a) P4(s) + NO3^- ==>> H2PO4^- +NO(g) (acidic solution)
b) Mn^2 + MnO4^- ==>> MnO2(s) (basic solution)
2. For the reactions given in quation 1, assign oxidation states to each element. Identify the reducing agent and oxidizing in each reaction.