A common reaction is when two polyatomic ions or compounds of the same element in water combine to form a single chemical with an intermediate oxidation state - this called a comportionation reaction. Balance each of the following comportionation reactions involving sulfur oxides in acidic or basic aqueous solutions. Use the method of half-reactions and be certain to check your final answer to see if it is indeed balanced.
H2S + S2O32- pH=0 S