Electrochemistry 10 points for best answer?

Question

Using standard electode potential predict whether reaction between the following is feasible

1. Fe3+ and Br-

2.Br2 and Fe2+

3.Fe3+ and I-

please also show the step in each

Answer 1

Br2 + 2e- >> 2 Br-  E° = + 1.065

Fe3+ + 1e- >> Fe2+  E° = + 0.771

the reaction is

2 Br- +2 Fe3+ >>2 Fe2+ + Br2

E = - 1.065 + 0.771 < 0 the reaction does not occur

work in the same way fot the other questions