Two students below described a type of Earth's outermost layer:Student A: 5–12 kilometers deepStudent B: Makes up the sea floorWhich type of outermost layer did the students describe?

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).