Dung dịch được tạo ra do hòa tan 5gam chất tan X (không bay hơi, không điện li) trong 100 gam nước, bắt đầu đông đặc ở -1,550C. Nước có hằng số nghiệm đông là 1,86. Khối lượng phân tử của X là: A.46
B.58
C.60
D.74

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

The answer is nitrogen-containing bases

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.