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Chapter 1

Chapter 1. Introduction to Chemistry. What is Chemistry?. Study of the composition of matter and the changes matter undergoes. Areas of Study of Chemistry. 1. Organic chemistry - 2. Inorganic chemistry - 3. Analytical chemistry - 4. Physical chemistry 5. Biochemistry -.

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Chapter 1

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  1. Chapter 1 Introduction to Chemistry

  2. What is Chemistry? • Study of the composition of matter and the changes matter undergoes.

  3. Areas of Studyof Chemistry • 1. Organic chemistry - • 2. Inorganic chemistry - • 3. Analytical chemistry - • 4. Physical chemistry • 5. Biochemistry -

  4. Scientific Method • An important scientific discovery may involve some luck, but one must be prepared to recognize the lucky event. • Alexander Fleming • Most advances in science involves little or no luck, but a logical systematic approach to the solution of a difficult problem.

  5. Scientific Method • Logical approach to the solution of scientific problem. • Related to ordinary common sense.

  6. Observation • Using your senses to obtain information directly.

  7. Hypothesis • A possible explanation or reason for what is observed. • A proposal

  8. Experiment • Test the hypothesis. • For the results of an experiment to be accepted, the experiment must produce the same result no matter how many times it is repeated, or by whom.

  9. If the experimenting does not support the hypothesis, the hypothesis must be changed. • The process of testing the hypothesis must be carried out until the hypothesis fits all the observed experimental facts.

  10. Theory • Once a scientific hypothesis meets the test of repeated experimentation, it may become a theory. • A theory is a broad and extensively tested explanation of why experiments give certain results.

  11. A theory can never be proved because it is always possible that a new experiment will disprove it. • Theories give you the power to predict the behavior of natural systems.

  12. Scientific Law • Concise statement that summarizes the results of many observations and experiments. • Describes a natural phenomenon without attempting to explain it. • Can be expressed at a mathematical equation.

  13. A law states what happens; a theory explains why.

  14. Understanding Concepts • Chemistry deals with scientific facts - facts that can be discovered by making observations and doing experiments. • It is often necessary to rely on information that others have discovered.

  15. Diamond • Hardest known substance. • A form of the element carbon. • Highly ordered molecular structure. • Not the most stable form of carbon.

  16. Macro vs. Micro • Macroscopic - things you see with the unaided eye or large scale experimenting. • Microscopic - things too small to see with the unaided eye - or small scale experimenting.

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