If 0.850 L of a 5.00-M solution of copper nitrate, Cu(NO3)2, is diluted to a
volume of 1.80 L by the addition of water, what is the molarity of the diluted
solution? *

it would be a gas formation

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!

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~ trueboss72