Which is a example of a chemical change a. mixing of poster colors b. formation of clouds c. metal corroding in salt water d. sugar dissolving in water e. separating salt water from sea water

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.