A4.5 liter sample of a gas at 2 atm and 300 k has 0.80 mole of gas. if 0.35 mole of the gas is added to the sample at the same temperature and pressure, what is the volume of the gas?

3.9 liters
5.3 liters
6.3 liters
6.5 liters

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.