Test Bank For Chemistry & Chemical Reactivity, 11th Edition by John C. Kotz Paul M. Treichel John R. Townsend David Treichel Chapter 1-25 Chapter 01 1. A hypothesis is a _____. a. well-tested unifying principle that explains a body of facts b. set of experiments designed to test a theory c. tentative explanation or predication based upon experimental observations d. set of quantitative data e. concise statement of behavior that is always the same under the same conditions ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: 1.1 Chemistry and Its Methods NOTES: Dynamic Question DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 1/29/2018 4:02 AM 2. Which of the following statements concerning green chemistry is not correct? 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 pose minimal risk for accidents. d. Raw materials should be renewable whenever technically and economically practical. e. Chemical syntheses should be done at extremely high temperatures to ensure harmful bacteria are destroyed. ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: 1.2 Sustainability and Green Chemistry DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 1/29/2018 4:07 AM 3. One of the following is not a description of gases. Which one is it? a. particles far apart b. relatively high densities c. expands infinitely on heating d. fills any container completely e. easily compressed ANSWER: b Copyright Cengage Learning. Powered by Cognero.
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POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: 1.3 Classifying Matter NOTES: Dynamic Question DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 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. Particles in a solid are packed closely together, but are not confined to specific 2. positions. Particles in a gas fly about randomly, colliding with themselves and the walls of their 3. container. a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3 ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: 1.3 Classifying Matter DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 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. Particles in a liquid are packed closely together, but are not confined to specific 2. positions. 3. Particles in a gas vibrate back and forth about their average position. a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3 ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: 1.3 Classifying Matter DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 1/29/2018 4:09 AM
Instructions: Use the pictures below to answer question 6:
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6. Which of the above figures represents a liquid compound? a. Figure A b. Figure B c. Figure C d. Figure D ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True PREFACE NAME: Matching 1 TOPICS: 1.3 Classifying Matter 1.4 Elements 1.5 Compounds NOTES: OWL | Dynamic Question DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM
e. Figure E
Instructions: Use the figures below to answer questions 7:
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7. Which of the above figures represents a homogeneous mixture? a. Figure E b. Figure A c. Figure B d. Figure C e. Figure D ANSWER: a POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True PREFACE NAME: Matching 2 TOPICS: 1.3 Classifying Matter 1.4 Elements 1.5 Compounds NOTES: OWL | Dynamic Question DATE CREATED: 1/29/2018 4:18 AM DATE MODIFIED: 1/29/2018 4:41 AM
Instructions: Use the pictures below to answer question 8: Copyright Cengage Learning. Powered by Cognero.
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A)
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8. Which of the above figure represents a mixture of two elements? a. Figure A b. Figure B c. Figure C d. Figure D e. Figure E ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False PREFACE NAME: Matching 3 TOPICS: 1.3 Classifying Matter 1.4 Elements 1.5 Compounds NOTES: OWL DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 9. Which one of the following statements is correct? a. A pure substance may be separated by filtration or distillation into two or more components. b. A heterogeneous mixture is also known as a solution. c. A heterogeneous mixture is composed of two or more substances in the same phase. d. The composition is uniform throughout a homogeneous mixture. e. The combination of a liquid and a solid always results in a heterogeneous mixture. ANSWER: d POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: 1.3 Classifying Matter DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 10. Which of the following is not a mixture? a. soda b. skim milk c. wine d. cow manure e. graphite Copyright Cengage Learning. Powered by Cognero.
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ANSWER: e POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: 1.3 Classifying Matter NOTES: Dynamic Question DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 11. Which of the following are likely to form a homogeneous mixture? 1. milk and ice cream blended together with chocolate syrup 2. an egg combined with milk and mixed with a whisk 3. 1 gram table salt combined with 250 mL of water a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3 ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: 1.3 Classifying Matter DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 12. Which one of the following is most likely to be a homogeneous mixture? a. plain yogurt b. blood c. gasoline d. campfire smoke e. mortar (a mixture of calcium carbonate and sand) ANSWER: c POINTS: 1 QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: 1.3 Classifying Matter NOTES: Dynamic Question DATE CREATED: 3/5/2014 6:30 PM DATE MODIFIED: 3/5/2014 6:30 PM 13. Which of the following is a heterogeneous mixture? a. Vinegar (a mixture of acetic acid and water) b. Soil c. Sugar water d. Table salt dissolved in water e. Gasoline ANSWER: b POINTS: 1 QUESTION TYPE: Multiple Choice Copyright Cengage Learning. Powered by Cognero.
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