WILL MARK YOU BRAINLIEST AND GIVE YOU 15 POINTS!! What is the mass of 22.4 L of N2 at STP? (5 points)

a
11.2 grams

b
14.00 grams

c
22.4 grams

d
28.01 grams

22.4 atm pressure corresponds to 22.4 × 1.25 = 28 g

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

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