2S + 3O2 ==> 2SO3 In this reaction above, how many miles SO3 will be formed when 0.96 moles of O2 is reacted with S.

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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