This document discusses the classification of matter based on properties, state, and composition. It defines intensive and extensive properties, and provides examples of physical properties. Pure substances can be either elements or compounds. Mixtures are physical blends that can be separated, while substances have a uniform composition. Elements are the simplest substances that cannot be broken down further, while compounds contain two or more elements that are chemically bonded together.

1. Matter and Change
Mrs. Coyle
Chemistry

2. A) Classification of Matter

3. Some Criteria for the
Classification of Matter
 Properties
 State (solid, liquid, gas)
 Composition

4. Properties
Intensive
-Do not depend
on amount of
matter.
Extensive
-Depend on
amount of
matter.

5. Intensive and Extensive
Properties
Sulfur

6. Properties
Physical: observed without
without changing the composition
of the substance.
Chemical: the ability of a
substance to undergo a specific
chemical change

7. Examples of Physical
Properties
Color, odor, hardness, density,
melting point, boiling point, state,
solubility.

8. (Pure) Substance
Matter that has a uniform and
definite composition.
Elements
Compounds

9. Mixture: a physical blend of two or
more substances that are not
chemically combined.
Homogeneous
Heterogeneous

10. B) Mixtures

11. Mixture
A physical blend of two or more
substances.

12. Note:
Mixtures can be physically
separated.
Mixtures exhibit physical
properties similar to the
components of the mixture.

13. c) Elements and Compounds

14. Elements
The simplest substances.
Can not be separated into simpler
substances.
Building blocks of all matter.
More than 100 known elements.
Represented by chemical
symbols.

15. Compound
A substance that contains two or more
elements chemically combined.
Compounds have different properties
from the individual substances.
(Ex: H2O)

16. Substance or mixture?
If composition is fixed and may
not changesubstance