What are mixtures

1
What are mixtures?

• State Standard
• 7.12.tpi.5 classify a given type of mixture as
  homogeneous or heterogeneous.

2
Mixtures

• A mixture is a combination of 2 or more
  substances that are not chemically combined.
• No chemical change occurs in a mixture.
• Each substance in a mixture has the same chemical
  make up it had before the mixture formed.
• Mixtures can be physically separated.
• Mixtures do not have a definite ratio

3
Homogenoushomo (same) gen (cause) ous
(condition of)
Solution

• Made of 1 solute dissolved in a solvent.
• Small particles
• Particles do not settle in the bottom.
• Particles do not scatter light
• Examples
• Mt. Dew, lemonade, milk, Gatorade

4
Homogenous
Colloid oid - resembling

• Large particles
• Particles do not settle
• Scatter light and sometimes reflect light
• Example
• Jell-o
• Whipped cream
• Sour cream,
• Blood
• Stick deodorant

5
HeterogeneousHetero different
Suspensions

• Large particles
• Particles do settle
• Particles do not dissolve
• Scatter light
• Examples
• Snow
• Salad
• Italian dressing
• Shake items before using