Classification of Matter
- Two or more elements or compounds that are blended together without combining chemically.
- Heterogeneous mixture
- A mixture that is not the same throughout with visible particles that can be separated from the mixture.
- Heterogeneous mixture in which particles can be seen, particles will settle out eventually. Light shining through a suspension will show the suspension's particles (Tyndall effect).
- Homogeneous mixture
- A mixture that is well-mixed with no visible boundaries, with identical properties throughout.
- An extremely well-mixed homogeneous mixture in which one substance (solute) is dissolved uniformly in another (solvent). Light shining through a solution will not show any particles.
- A solid solution, usually of metals.
- Non-separating mixture with particle sizes between solutions and suspensions. Light shining through a colloid will reflect off of the colloid particles.
- The simplest pure substance, composed of just one kind of atom.
- A pure substance made of two or more elements that are chemically combined. The compound will have different physical and chemical properties than the parent elements. The elements always combine in the same ratio or proportions.
- The smallest particle of a compound that retains the properties of the compound. Consists of two or more elements chemically bonded together.
There are several types of colloids:
||Liquid in gas
||Solid in gas
||Gas in liquid
||Gas in solid
||Liquid in liquid
|Solid Emulsion (gel)
||Liquid in solid
||Solid in liquid
||Paint, cell fluid
||Solid in solid