CHEMICAL CHANGE
CHEMICAL CHANGE
– alter the composition of the material through
a chemical reaction
CHEMICAL CHANGE
– alter the composition of the material through
a chemical reaction
SOME EVIDENCE THAT CAN HELP YOU DETERMINE
A CHEMICAL CHANGE HAS OCCURRED:
1. There are bubbles
2. There is odor given off
3. Heat is given off
4. There is a formation of precipitate
5. There is a new color that appears
TYPES OF CHEMICAL CHANGE
TYPES OF CHEMICAL CHANGE
 1.
COMBUSTIBILITY
– is the ability of the substance to combine
with oxygen gas resulting in a release of energy.
TYPES OF CHEMICAL CHANGE
 1.
COMBUSTIBILITY
– is the ability of the substance to combine
with oxygen gas resulting in a release of energy.
2. ELECTROLYSIS
-is when an electric current passes through a
liquid that contains ions, chemical decomposition
occur.
TYPES OF CHEMICAL CHANGE
 1.
COMBUSTIBILITY
– is the ability of the substance to combine
with oxygen gas resulting in a release of energy.
2. ELECTROLYSIS
-is when an electric current passes through a
liquid that contains ions, chemical decomposition
occur.
3. LIGHT SENSITIVITY
- is the ability of a substance to change into a
new substance in presence of visible light.