The Study of Matter & Change

CP ChemistryChapter 1

Chemistry is a physical science.

• It is the study of …• 1. composition• 2. structure• 3. properties • 4. changes– that matter undergoes.

Branches of Chemistry

• 1. organic• 2. inorganic• 3. physical• 4. analytical• 5. biochemistry• 6. theoretical

Basic & Applied Research

• Basic: just to increase our knowledge– Ex: Teflon was discovered this way

• Applied: to solve a problem– Ex: medical treatments and pharmaceuticals

Matter & Its Properties

• Mass• Matter• Atom• Element• Compound• Mixture

Types of Properties

• What are some examples of a property of matter?

• Extensive – amt dependent– Ex: ?

• Intensive – not amt dependent– Ex: ?

Physical Properties & Changes

• Define physical change

• Change of state– Solid– Liquid– Gas

Characteristics of Matter

• Volume• Shape• Energy• Motion

Chemical Properties & Changes

• Define chemical change

• Reactants Products– Evidence of change

• Energy always converts to a new form but the amount of it in the universe stays the same.

Classification of Matter

• Pure, ex:– 1. fixed composition– 2. fixed properties

• Mixture, ex:blend of 2 or more kinds of matter which

retains its own properties and identity

Mixtures

Types of Mixtures– 1. homogeneous – uniform composition

ex.?– 2. heterogeneous – non-uniform composition

- has interfaces and phasesex.?

Elements

• Periodic Table• Vertical Columns– Groups– Families

• Horizontal Rows– Periods

Types of Elements

• Metal• Nonmetal• Metalloids• Noble Gases