Н |
H— С — Н
Н
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н— С – С – С – Н
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H н н
І — О
Name this compound

well in order to answer this question you have to provide more information < 3

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!

if you need further assistance, let me know: )

~ trueboss72

there are two significant figures.