600 Density of Various Substances
m = 10.5v
500
400
A
300
Mass (8)
200
100
m = 2.7v
B
m = 0.8v
m = 0.002v
D
60
С
0
EK
10
20
30
40
50
-100
Valea
Which one is the most dentist

300

Explanation:

this is because density is equal to total mass so you just divide by total volume

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