TEST BANK FOR CHEMISTRY AND CHEMICAL REACTIVITY, 8TH EDITION: JOHN C. KOTZ

Chapter 1--Basic Concepts of Chemistry copy 1. A hypothesis is a A. mathematical formula that models a pattern of behavior. B. concise statement of a behavior that is always the same under the same conditions. C. set of experiments designed to test a theory. D. well-tested, unifying principle that explains a body of facts. E. tentative explanation or prediction based upon experimental observations. 2. A theory is a A. concise statement of a behavior that is always the same under the same conditions. B. tentative explanation or prediction based upon experimental observations. C. mathematical formula that models a pattern of behavior. D. well-tested, unifying principle that explains a body of facts. E. set of quantitative numerical data. 3. All of the following statements concerning green chemistry are correct EXCEPT A. it is better to prevent waste than to treat or clean up waste after it is formed. B. synthetic methods should be designed to use and generate substances that possess little or no toxicity to human health or the environment. C. substances used in a chemical process should be chosen to minimize the potential for chemical accidents. D. raw materials should be renewable whenever technically and economically practical. E. chemical syntheses should be done at high enough temperatures to ensure harmful bacteria are destroyed. 4. Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT? 1. Particles in a liquid vibrate back and forth about an average position. 2. Particles in a solid are packed closely together, but are not confined to specific positions. 3. Particles in a gas fly about randomly, colliding with themselves and the walls of their container. A. 1 only B. 2 only C. 3 only D. 1 and 2 E. 1, 2, and 3 5. Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT? 1. Particles in a gas move faster as the temperature increases. 2. Particles in a liquid are packed closely together, but are not confined to specific positions. 3. Particles in a gas vibrate back and forth about an average position.