An airplane began with an initial velocity of 120 m/s and ended with a final velocity of 180 m/s in 4 seconds. What was its acceleration? A.60 m/s/s
B.15 m/s/s
C.45 m/s/s
D.30 m/s/s

The water cycle increase the water content in the earth atmosphere

Answer two atoms of oxygen;

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.

Answerelement;