the study of the composition, structure, and properties of matter and the changes it undergoes
DESCRIPTION
Analytical Chemistry Study that focuses on the composition of matter Physical Chemistry Study that focuses on the changes in matter – the rate of change, energy transferTRANSCRIPT
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The study of the composition, structure, and properties of matter and the changes it undergoes
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Analytical Chemistry• Study that focuses on the composition of
matter Physical Chemistry
• Study that focuses on the changes in matter – the rate of change, energy transfer
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Organic Chemistry• Study of all chemicals containing carbon
Mainly organisms Inorganic Chemistry
• Study of chemicals that do not contain carbon Mainly nonliving objects
Biochemistry• Study of the processes that take place in
organisms Muscle contraction, digestion
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An organized set of investigation procedures
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1. State the problem• The “how” or “why”
2. Gather information3. Form a hypothesis
• A possible explanation for a problem using what you know and what you observe
• A suggested explanation for an observation
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4. Test the hypothesis by performing an experiment
5. Analyze data• Record observations• Organize data into tables and graphs
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6. Draw conclusions• If your data supports the hypothesis, your
hypothesis was correct.• If your data does not support the
hypothesis, your hypothesis was not correct. Change your hypothesis and begin again.
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Tests the effect of one by using controlled conditions
Uses variables or a quantity that can have more than a single value
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Independent: the variable you can change or manipulate to see how it affects the dependent variable
Dependent: the variable that changes because of the independent variable
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Constant: a factor that does not change when other variables change
Control: standard by which the test results can be compared