1) Identify the species that is oxidized and species that is reduced in the two following reactions:
Reaction 1: IO3- + 8I- + 6H+ --><-- 3I3- + 3H2O
Reaction 2: 3I3- + 6S2O32- --><-- 9I- + 3S4O62-
2) Assign oxidation numbers to all the atoms in the two equations
3)Give the half reactions for the second reaction