How does the rate law show how concentration changes affect the rate of reaction?
A. The rate is expressed as the sum of the concentrations of
reactants raised to some power.
B. The rate is expressed as a ratio of the concentrations of reactants
raised to some power.
C. The rate is expressed as the difference between the
concentrations of reactants.
D. The rate is expressed in terms of concentrations of the reactants
raised to some power.

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.