the volume of a sample of hydrogen gas was decreased from 14.66 to 7.95 L at constant temperature is the final pressure exerted by the hydrogen gas sample was 7.56 atm what pressure did the hydrogen gas exert before it's volume decreased​

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

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?

What is the molecular weight of copper