If a crystal added to an aqueous solution causes many particles to come out of the solution, the original solution was
a. saturated.
b. unsaturated.
c. supersaturated.
d. an emulsion.

I don't think it is. I think it would be an emulsion.

the answer is either b or c

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72