1. Chemical Properties and Changes

2. Water to Wine Demo What was happening? Were these physical changes?
Were these physical properties?

3. Chemical Property
Characteristic of matter that can only be observed when one substance changes into a different substance
It changes its identity!
All of the beginning material is gone!
Ex:
C + O  CO

4. Chemical Change Occurs when a substance changes into something new
How?
Heating
chemical reaction (key word = reacting)
5 Proofs of a chemical change
Bubbles forming
Change in energy
Unexpected change in color
Change in odor
Formation of a precipitate

5. Lab in a Bag