Chapter 6 Section 1

1. Chapter 6 Section 1 Solutions and Other Mixtures

2. Any sample of matter is either a pure substance or a mixture

3. Heterogeneous Mixture • Heterogeneous Mixture: mixture that is not the same throughout • Example: fruit salad • Suspension: mixture that looks uniform when stirred or shaken but separates into different layers when left alone. • Example: orange juice

4. Suspensions

5. Colloid: mixture of tiny particles that are dispersed in another substance but do not settle out of the substance • Examples: egg white, paint, blood • There are 2 differences between particles in colloids and those in susensions: • Particles in colloids are much smaller than those in suspensions • Particles in colloids do not settle to the bottom b/c their particle size is so small

6. Colloids

7. Immiscible Liquids: two or more liquids, solids, or gases, that don’t mix • To separate immiscible liquids you can: • Pour the less dense liquid off the top • Use a special container to get the dense liquid off the bottom • Emulsion: mixture of immiscible liquids in which liquids are spread throughout one another. • Example: mayonnaise

8. Emulsion

9. Homogeneous Mixture • Homogeneous mixture: mixture that is uniform throughout • Example: salt water (salt water can be separated by evaporation or boiling away the water.)

10. Solution: a homogeneous mixture of 2 or more substances uniformly spread throughout a single phase.

11. Solute: the substance that dissolves in a solution. • Example: aquarium salt • Solvent: the substance that dissolves the solute. • Example: water (universal solvent) • Miscible Liquids: 2 or more liquids that form a single layer when mixed. • You can separate miscible liquids by a process called distillation