Gases can be differentiated from solids and liquids because gases have:

Question

A. reduced chemical reactivity.
B. no color.
C. average densities on the order of 10-3 g/mL.
D. a spherical shape.

I think the answer is C or D.

Answer 1

Just as an example, O2 has a density of 32/22.4 = 1.42 g/L and N2 has
28/22.4 = 1.25 g/L. Convert that to g/mL and see if that agrees with c.

Answer 2

so the answer is C?

Answer 3

I think so.

Answer 4

It is c