1. Mixtures

2. 2 or more substances that are NOT chemically combined
Mixture
2 or more substances that are NOT chemically combined
Examples: Pizza, Fruit salad, juice
No chemical change
Each substance in a mixture keeps it identity
Can be formed using any ratio of components  example- granite contains any ratio of feldspar, mica, and quartz granite

4. Separating Mixtures Physically
Separates a mixture based on boiling points
Separates a mixture of elements-iron and aluminum
Separates mixtures by densities
Separation by heating until the liquid is gone and the solid is left
Pouring a mixture through a filter-liquid goes through-solid left on filter
Distillation
Magnet
Centrifuge
Evaporation
Filtration

6. Homogeneous- can’t see parts
well-mixed mixture
Homogeneous- can’t see parts
Not Heterogeneous-can see different parts clearly
The substance that dissolves
Example: salt
soluble-able to dissolve
Insoluble-unable to dissolve-mixture-not a solution
The substance that the solute dissolves in
Example: water
Solution
Solute
Solvent

7. Solutions
the substance present in the larger amount is considered the solvent
Example: 30 ml alcohol and 5 ml water-alcohol is the solvent
Small
Never settle
Cannot be filtered out
Cannot scatter light
2 liquids, 2 gases , 2 solids mixed together to form a solution
Particles in Solutions

8. Concentration of Solutions
The amount of a substance in a mixture or solution
Contains less solute
Contains a large amount of solute
Concentration
Dilute
Concentrated

10. Concentration of Solutions
The ability of one substance to dissolve in another at a given temperature and pressure
Solubility

11. Dissolving Solids in Liquids Faster
Mixing
Heating
Crushing
Solute particles separate and spread out among the solvent
Particles move more quickly
Solvent can separate the solute particles
Particles mix more quickly with solvent

12. Concentration of Solutions
Gases in Liquids
Solids in Liquids
Less soluble in at higher temperatures
More soluble in higher temperatures

13. Other Types of Mixtures
Suspension
Particles are evenly dispersed throughout a liquid and a gas
Large particles can scatter light
Separate by filtration
Particles are to large to stay mixed
Example: Snow Globe

14. Other Types of Mixtures
Colloid
Tiny particles suspended in a liquid, solid or gas
Particles are between the size of those in a solution and those in a suspension
Too small to be filtered
Examples: milk, mayonnaise, gelatin, and whip cream