Intro to Chem
Chapter 1
Wilbraham, Antony C., Dennis D. Staley, Michael S. Matta, and Edward L. Waterman. Prentice Hall Chemistry. 1st ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2008.
1.1 Chemistry
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What is Chemistry
◦ Chemistry is the study of the composition of
matter and the changes that matter undergoes.
◦ Matter is anything that has mass and occupies
space
 Chair, desk, air
 Why is air considered matter?
◦ Since living and nonliving things are composed of
matter, chemistry affects all aspects of life and
most natural events.
 How does chemistry affect your daily life?
Branches of Chemistry

Five branches of Chemistry
◦ Organic chemistry – study of chemicals
containing Carbon.
◦ Inorganic chemistry – chemicals that do not
contain carbon in general, mostly found in the
non-living
◦ Biochemistry – study of processes that take place
in organisms
◦ Analytical chemistry – study the composition of
matter
◦ Physical chemistry – study the mechanism, the
rate, & energy transfer when matter undergoes
changes.
Technology

Technology is the means by which a
society provides its members with those
things needed and desired.
◦ Space travel, robotics in the automotive
industry & surgical operations, others?
Why Study Chemistry?

Chemistry can be useful in explaining the
natural world, preparing people for career
opportunities, and producing informed
citizens.
1.1 Section Assessment
Page 11
 Problems : 1 – 7, omit #3
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
Scientific Method
◦ Is a logical, systematic approach to the solution of
scientific problem.
◦ Steps of the Scientific Method
 Make observations
 Why will the lights not turn on?
 Test hypothesis
 Hypothesis – is a proposed explanation for an observation.
 Experiment – procedure that tests the hypothesis
 Develop theories
 Theory – well-tested explanation for a broad set of observation.
 Law – concise statement that summarizes the results of many
observations and experiments.

Collaboration and Communication
◦ Scientists collaborate and communicate to increase
the likelihood of a successful outcome.
1.3 Section Assessment
Page 25
 Problems: 16 – 25; omit #20.
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