Jisel has 43.2g of CaO. If the molar mass of CaO is 56.08 g/mol, how many moles of CaO does Jisel have? Which of the following is correct

A - 0.770 mol CaO

B - 2422 mol CaO

C - 4.64 x 1023 mol CaO

D - 99.28 mol CaO

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.

Contained in chromosomes which are located in the nucleus of the cell.

Remember that rust prevented by placing a sacrificial electrode in electrical contact with the iron. the sacrificial electrode must be composed of a metal that  oxidizes  more easily than iron (that is, it must be below iron in table 18.1).