Investigating a fire scene, Investigator Jones determines several places where fires started. What might this indicate about the cause of the fire? It was an electrical fire
It was deliberately set
An accelerant was used
It was an accident

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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