What are transition metals??​

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

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.

Describe the properties of sodium, chlorine, and sodium chloride