PLZZZ HURRY I NEED HELP The atmosphere is made mostly of .

nitrogen
hydrogen
carbon dioxide
oxygen

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?

When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?