Which pair of compounds will form a solution? benzene (c6h6) and hexane (c6h14)na2so4 and benzene (c6h6)nacl and hexane (c6h14)h2o and ccl4more than one of the combinations above will form solutions.

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.

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i think its 100.

hope this !