1. Warm-Up
In your own words, define the word mixture.

2. A Closer Look a Mixtures
Solution Chemistry
A Closer Look a Mixtures

3. Solutions
Homogeneous mixture of two or more substances in a single phase
Two components
Solute- the substance being dissolved
Solvent- the substance doing the dissolving
Can be a mixture of solids, liquids, and gases
Ex- air, brass, salt water

4. Suspension
A mixture in which the solute particles are so large, the eventually settle out unless the mixture is constantly stirred
Particles larger than 1000nm in diameter
Particles can be separated using filter paper
Ex- muddy water

5. Colloid
Mixtures with solute particles between 1 and 1000nm in diameter
Particles able to remain suspended throughout the solvent
Ex- milk, smoke, gelatin, foams

6. How can we tell them apart?
Suspensions will eventually settle out
For solutions and colloids, we can refer to the Tyndall Effect
If we shine a light on a mixture, and the light does not scatter, it is a solution
If the light does scatter, it is a colloid.

7. Types of Solutes
Electrolyte- A substance that dissolves in water to give a solution that conducts electric current
Nonelectrolyte- A substance that dissolves in water to give a solution that does not conduct an electric current

8. Three Categories of Solutions
Unsaturated solution- A solution that contains the less than the maximum amount of dissolved solute
Saturated solution- A solution that contains the maximum amount of dissolved solute
Supersaturated solution- A solution that contains more than the maximum amount of dissolved solute

9. Exit Ticket: To be Turned in
Explain the difference between a solution, suspension, and a colloid. Explain how we can tell them apart.