1. 1. A difference in what physical property is often used to separate two immiscible
liquids?
A.
B.
C.
D.
Color
Density
Size
Shape
2. Fog and smoke are examples of what type of heterogeneous mixture?
A.
B.
C.
D.
Emulsion
Solution
Solvent
Colloid
3. What is another term for a homogenous mixture?
A.
B.
C.
D.
Milk
Salad
Solution
Solvent
4. What is an alloy?
A.
B.
C.
D.
A solid solution of two or more metals
A liquid solution of two or more metals
A mixture of hydrocarbons
A solution where alcohol is the solvent

2. Formic acid
and water

3. Review
•Solutions
•Key terms
•Examples

4. Speeding up the dissolving process
Affect of Solute Surface Area
50
40
30
Time
(seconds) 20
10
0
Whole Tablet
Crumbled
Tablet
Crushed
Tablet

5. Speeding up the dissolving process
• Increasing the
surface area of
a solute makes
it dissolve
faster

6. Universal Solvent
• Water will dissolve many
things
• Its called the “universal
solvent”
• It will not dissolve everything

7. Universal Solvent
• Water will attract both the
(+)’s and the (-)’s of an ionic
compound
• Attracts the individual atoms

8. Like Dissolve Like
• Polar substances dissolve
other polar substances
• Nonpolar will dissolve
nonpolar
• Nonpolar- equally shares
electrons

9. Like Dissolve Like
• Vegetable oil- nonpolar
• Will not dissolve in water

10. Like Dissolve Like
• Vegetable oil- nonpolar
• Will not dissolve in water