Chapter 14 Section 14.1 Types of Mixtures. Types of Mixtures. A mixture is a combination of two or more pure substances that are not chemically combined. Types of Mixtures.
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Types of Mixtures
A mixture is a combination of two or more pure substances that are not chemically combined
because The dispersing medium particles form charged layers around the colloid particles. These charged layers repel each other and keep the particles from settling out.
1- If you interfere with the electrostatic layering, colloid particles will settle out of the mixture. For example, if you stir an electrolyte into a colloid, the dispersed particles clump together, destroying the colloid.
2- Heating also destroys a colloid because it gives colliding particles enough kinetic energy to overcome the electrostatic forces and settle out.
It results from collisions of particles of the dispersion medium with the dispersed particles. These collisions help to prevent the colloid particles from settling out of the mixture.
1- solute: dissolved in a solvent.
2- Solvent: substance that dissolves another
Q: Make a comparison between solution, colloid and suspension