Here's why:
* Suspension: A suspension is a heterogeneous mixture where particles of one substance are dispersed throughout another substance. The dispersed particles are larger than those in a solution and are visible to the naked eye.
* Liquid and Gas: When a gas is dispersed within a liquid, it forms tiny bubbles that remain suspended throughout the liquid.
Examples of liquid-gas suspensions:
* Soda: Carbon dioxide gas is dissolved in water, creating bubbles.
* Whipped cream: Air is whipped into cream, forming a foam.
* Ocean water: Dissolved gases like oxygen and nitrogen are present in seawater.
It's important to note that a suspension is not a solution. In a solution, the particles of the dissolved substance are completely surrounded by the solvent molecules and are not visible. In a suspension, the dispersed particles are large enough to be seen and can settle out over time.