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Unformatted text preview: C HAPTER 1 The Nature of Chemistry 1 Objectives You will be able to do the following. 1. Describe how science in general is done. 2. Given a description of a property of a substance, identify the property as a chemical or physical property. 3. Given a description of a change for a substance, identify the change as a chemical or physical change. 4. Classify mixtures as heterogeneous or homogeneous. 5. Classify forms of matter as mixtures or substances. 6. Classify substances as elements or compounds 7. Write a description of matter in terms of the kinetic molecular theory. 8. Write a description of the relationship between temperature and motion. 9. Write a description of the similarities and diFerences between solids, liquids, and gases in terms of the kinetic molecular theory. Your description should include mention of the particle nature of matter, the degree of motion of the particles, and the degree of attraction between the particles. 10. Write an explanation for why solids usually expand when heated. 11. Write a description of the process of converting a solid into a liquid by heating. Your description should include mention of the changes in the solid when heat is added. 12. Write a description of the process by which a liquid evaporates to form a gas. 13. Convert between the names and symbols for the elements on Table 1.1. 14. Convert between the denition and the term for the following words or phrases. Chapter 1 Glossary Chemistry e study of the structure and behavior of matter. Matter Anything that has mass and occupies space. Hypothesis An idea that is tentatively proposed as a explanation for some observation and provides a basis for experimentation. Qualitative Information not involving numbers. Quantitative Information obtained from measurements that produce numbers. Law A statement that summarizes and explains a wide range of experimental results and has not been contradicted by experiments. Teory A successful hypothesis...a unifying principle that explains a body of facts and the laws based on them. Model A simplied approximation of reality. Physical properties Characteristics that can be observed and measured without changing the composition of a substance. Physical changes Changes in the physical properties of a substance. Chemical changes or reactions Changes in which one or more substances are transformed into one or more diFerent substances. 2 Chapter 1 The Nature of Chemistry Chemical properties Descriptions of chemical reactions a substance undergoes....
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This note was uploaded on 03/03/2012 for the course CHEM 100 taught by Professor Mark during the Fall '06 term at Monterey Peninsula College.
- Fall '06