How much energy is equivalent to 1.0 X 10^-4 kg of matter? (Speed of light= 3.0 X 10^8 m/s)

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more

Ibelieve it is b. proton.hope my answer has you : )

Ithink iit might be

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.