Someone please help I emailed my teacher and she hasn’t wrote back

27g

Explanation:

2AL + 6HCL —> 2ALCL3 + 3H2

Molar Mass of Al = 27g/mol

Mass conc. of Al from the equation = 2x27 = 54g

Molar Mass of H2 = 2x1 = 2g/mol

Mass conc. of H2 from the equation = 3 x 2 = 6g

From the equation,

54g of Al reacted to produced 6g of H2.

Therefore, Xg of Al will react to 3g of H2 i.e

Xg of Al = (54x3)/6 = 27g

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.