How many grams of C6H6 are present in 12.70 moles of C6H6

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

answer: mole of the gas

answer: mole of the gasexplanation:

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.