Air is a solution and a mixture of gases, what is the solvent in the solution we call air? a. Oxygen gas
b. Carbon dioxide gas
c. Nitrogen gas
d. Water vapor

c. nitrogen gas

Explanation:

Our air is a homogeneous mixture of many different gases and therefore qualifies as a solution. Approximately 78% of the atmosphere is nitrogen, making it the solvent for this solution.

6.4 cm (max) - 25 cm (min)

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!

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