A physical property is observed with the senses and can be determined without destroying the object. For example, color, shape, mass, length and odor are all examples of physical properties.
A chemical property indicates how a substance reacts with something else. The appearance of a substance is fundamentally changed in observing
chemical property. For example, the ability of Iron to rust is a chemical property: The Iron has reacted with Oxygen, and the original Iron metal has
changed, and now exists as Iron Oxide, a different substance.
Extrinsic Property is directly related to the amount of material being measured. In example, volume, mass, weight are extrinsic properties.
Intrinsic Property is independent of the quantity of matter present. In example, density, specific heat, boiling point, melting point.
Classify the following properties as either: chemical, physical, intrinsic or extrinsic:
Physica
l
Propert
y
Chemica
l
Property
Intrinsic
Property
Extrinsi
c
Propert
y
1. Blue color
2. Density
3. Flammability/Combustibility
4. Solubility
5. Reacts with acid to form H2 6. Supports combustion
7. Sour taste
8. Melting point
9. Reacts with water to form a gas
10. Reacts with a base to form water
11. Hardness
12. Boiling point
13. Can neutralize a base
14. Mass
15. Luster
16. Odor
17. Melting point
18. Ductibility
19. Volume
20. Weight
Physical & Chemical Changes. Explore at your Home
In a physical change, the original substance still exists, it has changed only in form. Ina a chemical change, a new substance is produced. Energy
changes always accompany chemical changes. Classify the following as being a physical or a chemical change (P) (C):
1. Sodium hydroxide dissolves in water ___
2. Hydrochloric acid reacts with Potassium hydroxide to produce a salt, water and heat ___
3. A chunk of Sugar is sliced in two ___
4. Water is heated and changed into steam ___
5. Iron rusts ___
6. When placed in water, salt dissolves ___
7. Evaporation ___
8. Ice melting ___
9. Milk sours ___
10. Sugar dissolves in water ___
11. Wood rotting ___
12. Pancakes cooking in a griddle ___
13. Grass growing in a lawn ___
14. A tire is inflated with air ___
15. Food is digested in the stomach ___
16. Water is absorbed by a paper towel ___
17. Burning a piece of paper
18. Chewing gum
19. Frying an egg
20. Melting ice cream