How many electrons (total number) are in the ion, CO3(2-) ? Select one:

a.30
b. 24
c. 32
d. 16

What is the number of moles in 15.0 g ash3?

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.