Bishop_Study_Guide_7 - 83 Chapter 7 Energy and Chemical...

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83 Chapter 7 Energy and Chemical Reactions Review Skills 7.1 Energy Kinetic Energy Potential Energy Units of Energy Kinetic Energy and Heat Radiant Energy 7.2 Chemical Changes and Energy 7.3 Ozone: Pollutant and Protector Removal of UV Radiation by Oxygen and Ozone Molecules The Natural Destruction of Ozone 7.4 Chlorofluorocarbons: A Chemical Success Story Gone Wrong CFCs and the Ozone Layer Special Topic 7.1: Green Chemistry - Substitutes for Chlorofluorocarbons Special Topic 7.2: Other Ozone-Depleting Chemicals Chapter Glossary Internet: Glossary Quiz Chapter Objectives Review Questions Key Ideas Chapter Problems
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84 Study Guide for An Introduction to Chemistry Section Goals and Introductions Section 7.1 Energy Goals To introduce the terms energy, kinetic energy, and potential energy. To introduce the Law of Conservation of Energy. To describe the relationships between stability, capacity to do work, and potential energy. To explain why breaking chemical bonds requires energy and why the formation of chemical bonds releases energy. To show how energy can be classified as kinetic energy or potential energy. To describe the units used to describe energy: joules, calories, and dietary calories. To describe internal kinetic energy, temperature, and heat. To describe radiant energy. Chemical changes are accompanied by energy changes. This section begins to develop your understanding of this relationship by introducing some important terms that relate to energy. An understanding of what potential energy is and how it is related to stability is probably the most important (and perhaps the most difficult) part of this section. Understanding potential energy will help you to understand why energy is absorbed in the breaking of chemical bonds and why it is released in the making of chemical bonds. Be sure that you understand the distinctions between kinetic energy and potential energy and between internal kinetic energy and heat energy. The section ends with a description of radiant energy, including descriptions of what it is, how it is described, and what its different forms are. Section 7.2 Chemical Changes and Energy Goals To describe the relationship between energy and chemical reactions. To explain why some chemical changes release energy as they proceed and why others need to absorb energy to take place. This section uses what you have learned in Section 7.1 to explain why some chemical reactions absorb heat energy from their surroundings and why others release heat energy to their surroundings. Section 7.3 Ozone: Pollutant and Protector Goals To describe why ozone is a pollutant in the lower atmosphere and why it helps to protect us from potentially harmful radiant energy when it is in the stratosphere. To describe how ozone is created in the lower atmosphere and to explain why it is
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Bishop_Study_Guide_7 - 83 Chapter 7 Energy and Chemical...

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