Question

What oxidation half-reaction happens when iron reacts with tin(II) nitrate?
Fe(s) + Sn(NO3)2(aq) Fe(NO3)2(aq) + Sn(s)

A. Sn(s) Sn2+(aq) + 2e-
B. Sn2+(aq) + 2e- Sn(s)
C. Fe(s) Fe2+(aq) + 2e-
D. Fe2+(aq) + 2e- Fe(s)

Answer 1

Fe(s) + Sn(NO3)2(aq) ----> Fe(NO3)2(aq) + Sn(s)

A. Sn(s) ----> Sn2+(aq) + 2e-
B. Sn2+(aq) + 2e- ----> Sn(s)
C. Fe(s) ----> Fe2+(aq) + 2e-
D. Fe2+(aq) + 2e- ----> Fe(s)

Answer 2

@nechirwan please help!

Answer 3

C. Fe(s) ----> Fe2+(aq) + 2e-

Answer 4

thank you so much! :)