How many grams of CO2 are produced from 0.64 miles of Fe2O3? How many moles of iron are produced from 42.9 g of Carbon Monoxide?

What mass of CO will be needed to make 253.6g of Fe2O3?

Use three significant digits and don’t use labels.

a polar bond is formed when electrons are shared unevenly between atoms

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.