Which is an appropriate unit of density? meters per square second (m/s2)

grams per cubic centimeter (g/cm3)

meters per second (m/s)

grams per mole (g/mol)

What is the mass of phosphorous in a 51-kg person

Calculate the mass of 0.750 mol of the following substance. na3po4.

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.