150 mL of 0.50 M NaOH is added to a 200 mL solution of 2.0 M HF.
a. How many moles of OH are in solution?
b. How many mole of F remain in the final solution?

is there multiple choice answers?

lol for the pointsss

a

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.