3 Using the balanced equation
2 KCIO3 2 KCl + 302
If 9.6 moles of O2 are produced, how many moles of KCIO3 are decomposed?
6

6.4 moles of  KClO₃ are decomposed

Explanation:

Given data:

Number of moles of O₂ produced = 9.6 mol

Number of moles of KClO₃ decomposed = ?

Solution:

Chemical equation:

2KClO₃       →     2KCl + 3O₂

now we will compare the moles of oxygen and KClO₃.

                 O₂           :           KClO₃

                   3           :               2

                9.6           :           2/3×9.6 = 6.4 mol

Thus, 6.4 moles of  KClO₃ are decomposed.

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.