How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

The boiling point of liquids is very high what does it indicate

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

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.