The Russian Mir space station used a chemical oxygen generator system to make oxygen for the crew. The system ignited a tube of solid lithium perchlorate (LiClO4) to make oxygen and lithium chloride (LiCl): LiClO4(s)→2O2(g)+LiCl(s)

If you have 500 g of LiClO4, then how many liters of oxygen will the system make at the station s standard operating conditions, a pressure of 101.5 kPa and a temperature of 21 C? (Show the steps involved in your work.)

what is the question?

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.

level 4 to level 2 : ))