An anion is an atom that has
(a) gained one or more electrons.
(b) lost one or more electrons.
(c) gained one or more protons.

What is the common name for the compound shown here? enter the common name of the compound shown?

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.

How many moles in .5g of sodium bromide?