Which of the following statements regarding atoms, molecules, and moles is correct?

Which of the following statements regarding atoms, molecules, and moles is correct?
A)Chemists are inherently lazy, so they weigh substances in order to avoid counting out the atoms or molecules in a sample.
B)It would be possible for an individual to count out a mole of atoms or molecules if they had a few days to do it.
C)A single grain of sand has about as many formula units of SiO2 as there are sand grains on all of the beaches on Earth.
D)A mole of HCl would have the same mass as a mole of NaCl, since they have the same number of particles.
E)Since a mole of LiCl has a mass of 42.39 g, the average mass of a LiCl formula unit would be 42.39 mole.


Leave a Reply

Your email address will not be published.