A RAV-4 has a 12.0 gallon gas tank. The driver fills her tank with gasoline which has a density of 0.75 g/mL, (a) What is the mass of the gasoline she pumps in units of kilograms? (You will need your conversion factor table)

(b) How many moles of gasoline does the tank hold if we assume it is pure octane, C8H18?
SHow your work.

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

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