Which flasks contain organisms undergoing cellular respiration? A. Flask 1, 2, and 3 B. Flask 1 and 3 C. Flask 2 and 3 D. None

b

Explanation:

I think I'm right but don't take my word for it.

b i think it’s a water wheel turning in a stream

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