Determine the ONE element that is being oxidized or reduced in each reaction. Write the oxidation state

oxidation-states

#1

Determine the ONE element that is being oxidized or reduced in each reaction. Write the oxidation state of that element on both the reactant and product side and tell whether it is oxidized or reduced.

a. ClO3- ClO2

b. SO42- S2-

c. Mn2+ MnO2

d. Zn ZnCl2

Answer:

a) Cl 5+ goes to Cl 4+ (reduction)
b) S 6+ goes to S 2- (reduction)
c) Mn 2+ goes to Mn 4+ (oxidation)
d) Zn 0 goes to Zn 2+ (oxidation)