A balloon is filled with Helium and has a volume of 150 mL at 200C and 1.75 atm of pressure. What will the new volume of the gas be if temperature is increased to 150°C and the pressure decreased to 0.95 atm?

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?