Which best describes the force of the Earth's gravity on a ball thrown 20 metres straight upward? A. The gravitational force is constant.
B. The gravitational force is weaker when the ball is at it's highest point.
C. The gravitational force is strongest when the ball is at it's highest point.
D. The gravitational force is zero.

U whay do you need with?

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.

The answer to your q it is d