1. Chemical Change
Change in the identity of the substance

2. Baking Soda + Vinegar Sodium bicarbonate and vinegar =>
NaHCO3 + CH3COOH CH3COO-Na+ + H2O + CO2
Sodium bicarbonate and vinegar
=>
Sodium acetate and water and carbon dioxide
Heat is released

3. It’s a chemical change if….
It burns
Temperature changes without heating/cooling

4. It’s a chemical change if...
It bubbles (makes a gas)
Reacts with acid

5. It’s a chemical change if...
It changes color
It forms a precipitate (a solid)

6. It’s a chemical change if...
Corrosion (Rust or
Oxidation)

7. What kind of change is it if someone...
Tears up paper?
Physical change
Mixes salt and water?

8. What kind of change is it if someone...
Burns paper?
Chemical change
Evaporates salt water?
Physical change

9. How is a burning candle both?