2. What is the Law of Conservation of mass?
10 points
CHA
+ 202
CO2
+ 2H20
O Mass is created in a chemical reaction
ONew chemicals formed from a chemical reaction have a larger overall mass than the
original reactants
OMass is created in a physical change
OMass is never created or destroyed
need answer please

where's the diagram?

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