1. Phase Changes and Heating Curve of Water

2. States of Matter
4 States of Matter
Solid
Liquid
Gas
Plasma

3. Phase Properties Phase Atoms Packed Energy Solid Little Liquid
Closest; retains its own shape
Little
Liquid
Closely but loose; takes the shape of its container
Moderate
Gas
Far Apart; takes the shape of its container
High

4. Phase Changes
As heat is added or taken away, matter can change its state or phase

5. Phase Changes Changes States Involved Melting Solid → Liquid Freezing
Liquid → Solid
Vaporization
Liquid → Gas
Condensation
Gas → Liquid
Sublimation
Solid → Gas
Deposition
Gas → Solid

6. Phase Changes Label the Phase Change Triangle in your notes now!
WRITE the examples for each Phase type too!

7. Heating Curve of Water
Water is matter that can go through ALL the different phase changes

8. Heating Curve of Water
There is NO temperature change during a Change of Phase!
All of the energy going into the substance is being used to change the substance from one state to another!

9. What is solubility?
Solubility is the MAXIMUM amount of solute that will dissolve in a given amount of solvent at a specified temperature and pressure.
For chemicals that are soluble, there is a limit to how much of the substance will dissolve. This limit is known as the solubility.

10. Solubility Curves
The graph on the right shows amount of solute that is dissolved in 100 grams of water at specific temperatures. These are solutions! If the solution is saturated, there is exactly enough solute to dissolve completely in the water. Point is On the curve! If the solution is unsaturated, there is not enough solute to dissolved in the water. Point is Under the Curve! If the solution is supersaturated, There is TOO MUCH solute dissolved (not all will) in the water. Point is Above the Curve!