Identify each part of this chemical equation, which describes the burning of methane and oxygen. a (the entire green box): b (the blue box): c (the arrow): d (the number): e (the purple box):

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.