Anon-reacting system, comprised of chloroform, dioxane, and ethanol, exists as a 2-phase vapor-liquid mixture at 50cand 55 kpa. it is found, after the addition of some pure ethanol, that the system can be returned to two phase of equilibrium at the initial t and p. in what respect has the system changed, and in what respect has it not changed?

i'm wiling to try and you : )

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.