An excess of sodium carbonate, Na2CO3, in solution is added to a solution containing 18.39 g CaCl2. After performing the experiment, 14.37 g of calcium carbonate, CaCO3, is produced. Calculate the percent yield of this reaction.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

idk what the question is about

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.