Magnesium oxide (MgO) forms when magnesium metal burns in air. (a) If 1.25 g of MgO contains 0.754 g of Mg, what is the mass percent of Mg in MgO? (b) What is the mass percent of O in MgO? c) How many micrograms of oxygen are in 534 kg of MgO?

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.

Answer(false);