Answer:
D is the answer may be. I'm not sure.
Answer:
c turns back when iodine is added result indicated a chemical reaction
According to provided equation it is clear that Zn metal is oxidized from Zn⁰ into Zn²⁺ which means that Zn metal dissolves and forming Zn²⁺ solution so the correct answer is:
mass of the Zn(s) electrode decreases
I’m pretty sure it’s D. Hope that helps! Correct me if I am wrong.
It would be 65 miles per hour