One common example of a solution where the solute is a gas and the solvent is a liquid is carbonated water. In this case, carbon dioxide (CO2) gas is dissolved in water. When you open a bottle of soda, you can hear the gas escaping, and the fizz you experience is due to the rapid release of carbon dioxide that was under pressure.
Another example is when oxygen (O2) is dissolved in water, which is essential for aquatic life. Fish and other organisms rely on this dissolved oxygen to survive. This solution is crucial in natural bodies of water like lakes and rivers.
Additionally, we can consider the solution of ammonia gas (NH3) in water. Ammonia is often used as a cleaning agent and is soluble in water, forming an ammonium hydroxide solution.
These examples illustrate how gases can mix with liquids to create solutions that play important roles in our daily lives and the environment.