Which statement about the following redox reaction in acidic solution is not correct?
MnO4-?(aq) + I?-?(aq) → MnO2(s) + I2(aq)
a) H2O and H?+ can be used to balance the oxygen atoms, if necessary, in each of the half-reactions.
b) MnO4-?(aq) → MnO2(s) is the reduction step.
c) I?-?(aq) → I2(aq) is the oxidation step.
d) The redox atoms are already balanced in this reaction.