1.Which of following is an oxidation half-reduction 2. which type of reaction does Sn2+ + Sn4+ represent?

Question

1.a. CI2 + 2e- --> 2CI-

b. Sn2+ --> Sn4+ + 2e-

c. O2 + 4H+ + 4e- --> 2H2O

d. Fe3+ + e- --> Fe2+

2. a. hydrogen

b. oxidation

c. reduction

d. none of above

Thanks for all the help, I am trying to do a summer online class with no teacher, no book and no help. No one I know has a clue about chemistry. Thanks again!!!! :)

Answer 1

The same question is being asked twice.

It's b both times.