Which student made an error during saftey protocols in the laboratory? Jess cleaned up her workspace.
Ben washed his hands before starting an experiment..
Ophelia forgot to put on her saftey googles.
Kai told his teacher when a glass broke.

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.