If 0.20 moles of helium occupies a volume of 64.0L at a pressure of 0.15atm, what is the temperature of the gas?

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

How will the emission of an alpha particle affect the atomic number of an atom