How can gas be a part of mixture?

Answer 1

There are three ways.

Some mixtures are gases themselves, and air is the most common one.

Some mixtures are partly gases and partly liquids.

Also, gases can dissolve into liquids, like oxygen in water.

Answer 2

Gas can be part of a mixture by being dispersed with other substances in the form of a gas-gas mixture, like air which is a mixture of gases. Gases can also be part of a gas-liquid mixture, such as carbon dioxide dissolved in soda. Overall, gases can be combined with other substances in various mixtures depending on the environmental conditions and interactions.