1. PHYSICAL PROPERTIES

2. Can be observed without the substance changing its composition
Without altering the composition of a substance

3. Example of Physical Properties
Physical state
Color
Density
Crystalline form
Melting point
Boiling point
Electrical conductivity

4. PHYSICAL STATE
There are different “states” of matter. States of matter are also known as phases (a physical state of matter). Elements and compounds can move from one phase to another phase when special physical forces are present.
Solid
Liquid
Gas

5. Density
The measurement of how much mass of a substance is contained in a given volume.
Mass/Volume

6. Density is an important property of matter which can be determined in different ways.
Density is usually expressed in grams per milliliter (g/mL) for liquids, grams per cubic centimeter (g/cm3) for solids, and grams per liter (g/L) for gases.

7. Freezing point
The temperature at which a liquid changes into a solid.

8. Boiling point
The boiling point of an element or compound means the temperature at which the liquid form of an element or compound is at equilibrium with the gaseous form.
the boiling point of water is 100 degrees Celsius.

9. Melting point
The temperatures at which the solid form of the element or compound is at equilibrium with the liquid form.
Basically the range at which the solid changes its state into a liquid.
The melting point of water is 0 degrees Celsius

10. Heat
Solubility in water
Malleability, ductility, hardness, odor

11. Physical Properties
Physical properties are used to identify, describe and classify matter.
Characteristic of a substance that can be observed (using your senses) without changing the substance into something else.
Hardness
Texture
Color
Odor
Taste
Temperature

12. Physical Properties of Na, Cl and NaCl
appearance
Silver metal
Yellowish gas
White crystal
Density
0.99 g/cm3
2.90 g/L
2.165 g/cm3
Melting point
97.8 ° C
-101.0° C
801° C
Boiling point
882.9° C
-34 .6° C
1413 ° C
Solubility in H2O
Reaction with water
.51 g at 30 ° C
37.7 g at 0 ° C

13. CLASSIFICATION OF PHYSICAL PROPERTIES
1. EXTENSIVE/ EXTRINSIC
Vary with the amount of the sample or can vary in the same kind of sample

14. CLASSIFICATION OF PHYSICAL PROPERTIES
2. INTENSIVE/ INTRINSIC
Do not vary with the amount of the sample but on the kind
Inherent in the sample of matter and do not vary in the same sample of the same kind

15. WHAT about if there is a change in the intensive properties of a substance, it is still under the physical properties?