Question

In terms of the atmosphere, which of the following best describes the oxygen that is present?

It is the solvent in a homogeneous gas mixture.

It is the solute in a heterogeneous gas-liquid mixture.

It is the solvent in a heterogeneous mixture.

It is the solute in a homogeneous gas mixture.

Answer 1

The atmosphere is considered homogeneous. It isn’t exactly on the smallest scales but that doesn’t matter. Homogenous means the composition will be the same in any sample taken from the substance. And clearly, the atmosphere is mostly gas. So the last answer is right