A scientist performed an experiment to learn how the thickness of a piece of wood affects its ability to support weight without breaking. The scientist prepared three different pieces of wood and applied weight until they broke. The results are shown in the table below. Thickness of Wood Breaking Weight 1 cm 15 kg 2 cm 29 kg 3 cm 42 kg Which variable is intentionally controlled by the experimenter? A. The type of scale used to measure the weight O B. The thickness of the wood O C. The breaking weight D. The number of pieces of wood

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.

Answermilliliters and cubic centimeters;