Which of these is a difference between measurements of solids and liquids? A. solid’s density can change, while a liquid’s density cannot.

B. A solid has volume but not mass, while a liquid has mass but no volume.

C. The volume of a solid is measured in mL, while the volume of a liquid is measured in g^3
​3​​ .

D. The density of a solid is measured in g/cm^3
​3
​​ , while the density of a liquid is measured in g/mL.

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

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.

Qand k are only the same when the forward rate of the reaction has reached zero.