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Unformatted text preview: materials. Chemists usually observe matter and the changes it undergoes in the macroscopic world. This
refers to the objects we can see and touch, and deal with everyday. However, our interpretations of matter
involve atoms and molecules and their properties. Because atoms and molecules are so extremely small, we refer
to them as belonging to the microscopic world.
Chemists, like other scientists, make use of the scientific method which can be broken down into four
parts: observation and experiment, hypothesis, laws, and theory. The first step is to define the problem clearly.
That is you must know what you are trying to find out about. During e xperiments observations are made and
information is collected about the system being studied. After a large amount of data related to a certain
phenomenon have been collected, sometimes the information can be summarized in a simple verbal or
mathematical statement called a l aw . At this point a h ypothesis may be formulated to provide a tentative
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This note was uploaded on 09/15/2009 for the course CHEM 102 taught by Professor Bastos during the Spring '08 term at Adelphi.
- Spring '08