2. Write balanced half reactions and complete reactions for the following oxidation-reduction reactions. a.* aluminum(s) + hydrogen ion(aq) aluminum ion(aq) + hydrogen (g) oxid. half rxn.: Alis) = Al+ + 3e- red. half rxn.: 3H+ + 3c = 3/2 H (9) overall rxn.: Al(s) + 3H+ = A1++ + 3/2 H (9) b. chloride + permanganate manganese (II) ion + chlorine(g) (aqueous acid) oxid. half rxn.: red. half rxn.: overall rxn.: c. tin(II) ion + dichromate tin(IV) ion + chromium(III) ion oxid. half rxn.: red. half rxn.: overall rxn.: For problem 2-c, give answers to the following: What is oxidized? What is reduced? What is the oxidizing agent? What is the reducing agent? (aqueous acid)