Matter

1
Matter

• Chemistry- The study of matter how it changes.
• Matter- Anything that has mass occupies space.
• Every Sample of matter is either an element,
  compound, or mixture.

2
Matter

• Element- Substance that cannot be broken down
  into simpler substances.
• The smallest unit of an element that keeps the
  elements properties is an atom.

3
Matter

• Each element is made of one kind of atom.
• Two or more elements combine chemically to make a
  compound.

4
Matter

• Compound- Substance made of atoms of more than
  one element bound together.
• Every compound is unique different from the
  elements it contains.

5
Matter

• A molecule acts as a unit.
• Molecule is the smallest unit of a substance that
  behaves like the substance.

6
Matter

• Chemical formulas represent compounds
  molecules.
• Chemical formulas show how many atoms of each
  element are in a basic unit of a substance.

7
Matter

• Pure substance is matter that has a fixed
  composition definite properties.
• Pure substances blended together make mixtures.

8
Matter

• Elements compounds are pure substances, but
  mixtures are not.
• Mixtures are classified by how thoroughly the
  substances mix.

9
Matter

• Heterogeneous Mixtures are not uniformly mixed.
• Homogeneous Mixtures are the same throughout.

10
Matter

• Miscible- Two or more liquids that are able to
  mix.
• Immiscible- Two or more liquids that dont mix.

11
Properties of Matter

• Matter has physical chemical properties.
• Physical properties are characteristics of a
  substance that can be observed without changing
  the composition of the substance.

12
Physical Properties

• Physical properties
• Help identify substances
• Can be observed or measured
• Help determine uses

13
Basic Properties

• Shape Color
• Odor Texture
• Melting Pt. Boiling Pt.
• Strength Hardness
• Density Conduct heat

14
Physical Properties

• Melting Point- The temperature at which a
  substance changes from a solid to a liquid.
• Boiling Point- The temperature at which a liquid
  changes to a gas

15
Density

• Density is a measurement of how much matter is
  contained in a certain volume of a substance.
• Density is calculated by dividing the objects
  mass by the objects volume.

16
Chemical Properties

• A chemical property describes how a substance
  changes into a new substance, either by combining
  with other elements or by breaking apart into new
  substances.

17
Chemical Properties

• Flammability is a chemical property that
  describes whether substances will react in the
  presence of oxygen and burn.
• Reactivity is the capacity of a substance to
  combine with another substance.

18
Chemical Physical Properties

• Chemical changes are changes in composition.
• Physical changes do not change composition.

19
Changes of Matter

• A physical change affects one or more physical
  properties of a substance without changing the
  identity of the substance.
• Dissolving is a physical change.

20
Changes of Matter

• A chemical change happens when one or more
  substances are changed into entirely new
  substances that have different properties.
• Chemical changes can be detected by color
  changes, fizzing or foaming, or production of
  sound, heat, light, or color.

21
Mixtures and Compounds

• Mixtures and compounds must be separated in
  different ways.
• Mixtures can be separated by physical changes,
  but compounds must be broken down by chemical
  changes.