Creating and separating mixtures
Mixtures contain different substances which are not chemically bonded
together. They can be made in many different ways and separated back to
their original components as well. In this info sheet, we’ll discuss two ways to
make mixtures: dissolving and diffusion.
Dissolving happens when the particles of a solid substance are mixed
thoroughly between the particles of a liquid substance so that you can no
longer see the solid. This could happen, for example, by stirring sugar into water.
This can only happen if the solid is soluble. Some solids would never dissolve
in a liquid, no matter how much stirring you did!
The solid that dissolves is referred to as the solute and the liquid in which it is
dissolved is called the solvent. Only a certain amount of solute can be
dissolved in a fixed amount of solvent. The end product is called a solution.