1. Chapter 2-2 Warm-Up
1. What are two examples of things that are not matter?
2. What is the difference between a compound and a molecule?
3. What is a heterogeneous mixture?
4. How many atoms and molecules are in the following formula?
3C12H22O11

2. Chapter 2-2
Properties of Matter

3. Physical Properties
Physical Property – Can be observed or measured to help identify a substance.
Color
Shape
Size
Density
Melting Point
Boiling Point

4. Melting Point
Melting Point – temperature and pressure at which a solid becomes a liquid
State – the physical form in which a substance exists
Solid, liquid, gas

7. Boiling Point
Boiling Point – temperature at which a liquid becomes a gas
Has to have constant pressure - altitude
Properties the same regardless of mass or volume of the substance

10. Density
Density – ratio of the mass of a substance to the volume of a substance
Determines what rises and sinks
How much “stuff” is in something

13. Density
Unit – g / cm3
If 10.0 cm3 of ice has a mass of 9.17 g, what is the density of ice?

14. Chemical Properties
Chemical properties are related to the specific element that make up substances.
Describes how a substance changes into a new substance

16. Reactivity
Reactivity – ability of a substance to combine chemically with another substance

18. Flammability
Flammability – ability of a substance to react in the presence of O2 and burn
Creates new substances
Ash
Smoke

19. Characteristic Properties
Both physical and chemical properties that describe a substance

20. Gravity Video