The O–O bond length in oxygen gas is 1.20741 Times. 10–10 m. The atomic radius is exactly One half. of the O–O bond length. Which is the atomic radius of oxygen, correctly written in scientific notation with the correct number of significant figures? 6 Times. 10–11
6.037 Times. 10–11
6.03705 Times. 10–11
6.04 Times. 10–11

Adozen is 1221/12 = 1.751.75 x 12 = 21therefore, 1.75 is the answer.

It would be true sodium reacts with water in a violent way 

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.