1) How much silver chloride will be produced if you have 10.0 g of MgCl, and 14.8g of AgNO, ? What is the limiting reagent? How much of the excess reagent is left over?
MgCl, + 2 AgNO, > Mg(NO3)2 + 2 AgCl

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.