Classification of

1
Classification of

• Matter

2
Classification of Matter

• Matter can be divided into pure and impure
  particle arrangement-
• A pure substance is anything that contains only
  one type of matter, so it is all the same
• A mixture is physical blend of two or more
  substances that are not chemically combined, so
  it is something and something else

3
Classification of Matter

• Element
• The simplest forms of matter.
• Composed of identical atoms
• Located on the periodic table
• ex copper wire, aluminum foil

So, is an element a pure substance or a mixture?
4
Classification of Matter

• Compound
• composed of 2 or more elements in a fixed ratio
• properties differ from those of individual
  elements
• EX table salt (NaCl), water (H2O)

So, is this salt a pure substance or a mixture?
5
Classification of Matter
A mixture is a combination of two or more
substances in which the substances retain their
distinct identities.

1. Homogenous mixture composition of the mixture
   is the same throughout. Can be separated by
   physical means

1. Heterogeneous mixture composition is not
   uniform throughout. Can be separated by physical
   means

So, is a pure substance and a mixture the same
thing?
6
Classification of Matter
Determine if each drawing represents a mixture, a
compound, or an element.
7
Classification of Matter
Physical means can be used to separate a
heterogeneous mixture into its pure components.

1. Distillation Used to separate a liquid from a
   soluble solid or two liquids with very different
   boiling points.
2. Filtration Used to separate an insoluble solid
   from a liquid
3. Crystallization separation that results in pure
   solid particles
4. Chromatography separates bases on the mobile
   phases tendency to travel across the surface of a
   material

8
Separation of Mixtures
a.

1. Filtration
2. Distillation
3. Chromatography
4. Chromatography

9
Matter Flowchart
MATTER
yes
no
Can it be physically separated?
yes
Can it be chemically decomposed?
no
Heterogeneous Mixture
Compound
Element
Homogeneous Mixture (Solution)