L
Use the image to determine the volume of the rock
Initial volume
ml
Final volume
mL
Volume of rock
cm

i would say b

explanation:

but i think i would need more information than that

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