94.3 g of bef2 were dissolved in 136.1 g of ethanol. use the table at the back of the exam to calculate the freezing point and boiling point of the resulting solution.

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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