If carbon dioxide (CO2) effuses at a rate of 34.11 seconds/mole, calculate the rate of effusion for hydrogen gas

What three things determine the shape and size of a puddle when water is poured out onto a surface

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?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion