Suspensions

Suspensions are a type of heterogeneous mixture in which solid particles are dispersed throughout a liquid or gas but are not fully dissolved. In a suspension, the solid particles are typically larger than those found in solutions and can often be seen with the naked eye. These particles can settle over time due to gravity, which differentiates suspensions from colloids, where the particles remain evenly distributed.

Common examples of suspensions include muddy water, paint, and certain medications where solid particles are mixed with a liquid medium. Suspensions require thorough mixing before use, as the solid particles can settle out, leading to separation into distinct layers. The stability and behavior of suspensions can be affected by factors such as particle size, temperature, and the viscosity of the liquid medium.