(Test Bank) Chemistry, The Molecular Science

Moore,Stanitski, 5

Chemistry

Test Bank

5th Edition

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Test Bank for Chemistry, The Molecular Science, The downloadable file consists of 453 pages, and the total size of the file is 4.64 MB. Purchase now only for highly discounted price.

Author(s): Moore, Stanitski

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Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 1 1. Modern research requires a. communication skills b. collaboration skills c. knowledge in a particular field d. a willingness to think about the world e. all of the choices above ANSWER: e POINTS: 1 TOPICS: 1.1 Why Care About Chemistry? OTHER: Comprehension NOTES: Grasp meaning 2. For a chemist, understanding a chemical reaction means: a. knowing what makes up a reacting atom. b. knowing what atoms make up a reacting molecule. c. knowing how atoms in a reacting molecule are connected together. d. having a mental picture of how reacting molecules interact with each other. e. both a and b. ANSWER: d POINTS: 1 TOPICS: 1.1 Why Care About Chemistry? OTHER: Comprehension NOTES: Grasp meaning 3. Removing arsenic from drinking water requires a. knowledge of arsenic’s chemical behavior b. patent’s to protect consumers c. knowledge of arsenic’s chemical toxicity d. medical histories of consumers e. knowledge of the history of the water source ANSWER: a POINTS: 1 TOPICS: 1.2 Cleaning Drinking Water OTHER: Comprehension NOTES: Grasp meaning 4. Which of the following is a qualitative statement? a. Water is a molecule composed of hydrogen and oxygen atoms. b. The density of ice at 0°C is 0.917 g/mL. c. A can of soda has a volume of 355 mL. d. A necklace is 58.3% gold. e. The melting point of lead is 327.5 °C. ANSWER: a POINTS: 1 Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 2 TOPICS: 1.3 How Science is Done OTHER: Comprehension NOTES: Grasp meaning 5. Which of the following contains both a quantitative and a qualitative information? a. The compound has a mass of 14.62 g. b. The compound formed pale yellow crystals. c. The drug is 92.5% pure. d. The reaction produced 112 g of a pure white solid. e. The compound melted. ANSWER: d POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Comprehension NOTES: Grasp meaning 6. A law is a: a. unifying principle that explains a body of facts. b. statement summarizing a group of scientific facts. c. possible explanation of observations. d. theory based solely on qualitative observations. e. statement that includes a measurement or number. ANSWER: b POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Knowledge NOTES: Knowledge of major ideas 7. What is a possible explanation of observations called? a. model b. theory c. hypothesis d. qualitative statement e. law ANSWER: c POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Knowledge NOTES: Knowledge of major ideas 8. A unifying principle that explains a body of facts is a: a. hypothesis. b. qualitative statement. c. law. Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 3 d. theory. e. model. ANSWER: d POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Knowledge NOTES: Knowledge of major ideas 9. A statement that includes a measurement or number is a: a. qualitative statement. b. hypothesis. c. model. d. law. e. quantitative statement. ANSWER: e POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Knowledge NOTES: Knowledge of major ideas 10. In science, a model is useful because it a. confirms the validity of a theory b. makes a theory more concrete c. predicts which theories are correct d. confirms the existence of molecules e. makes assumptions about things we can’t see ANSWER: b POINTS: 1 TOPICS: 1.3 How Science is Done OTHER: Comprehension NOTES: Predict consequences 11. The freezing point and boiling point of water are often used to calibrate thermometers. Give those temperatures in degrees Celsius. a. 273°C and 373°C b. 100°C and 273°C c. 32°C and 212°C d. 0°C and 100°C e. 0°C and 373°C ANSWER: d POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Knowledge NOTES: Knowledge of major ideas Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 4 12. On a summer day, the temperature may exceed 100°F. Correctly estimating this temperature in Celsius yields: a. 122°C. b. 8.0°C. c. 38°C. d. 56°C. e. 34°C. ANSWER: c POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Analysis NOTES: Seeing patterns 13. Lead melts at 328°C. Correctly estimating this temperature in Fahrenheit yields: a. 201°F. b. 622°F. c. 533°F. d. 182°F. e. 150°F. ANSWER: b POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Analysis NOTES: Seeing patterns 14. Helium may be liquified at -452°F. Correctly estimating this temperature in Celsius yields: a. -219°C. b. -484°C. c. -82°C. d. -269°C. e. -871°C. ANSWER: d POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Analysis NOTES: Seeing patterns 15. Which of the following is not a physical property? a. reactivity b. pressure c. hardness d. temperature e. heat capacity ANSWER: a Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 5 POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Comprehension NOTES: Interpret facts 16. All of the following properties of a substance can aid in its identification except: a. temperature. b. reactivity. c. melting point. d. boiling point. e. density. ANSWER: a POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Comprehension NOTES: Predict consequences 17. What is the volume of 84.9 g of nickel? (Density of nickel = 8.90 g/mL) a. 76.0 mL b. 8.54 mL c. 9.54 mL d. 756 mL e. 0.105 mL ANSWER: c POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Application NOTES: Solve problems using reequired skills or knowledge 18. An 8.90 g sample of nickel occupies 1 mL. Which statment is true? a. The density of a 17.80 g sample of nickel would be twice that of the 8.90 g sample. b. The density of a 4.45 g sample of nickel would be half that of the 8.90 g sample. c. The density of a 2 mL sample would be the same as the 1 mL sample. d. The density of a 2 mL sample would be twice that of the 1 mL sample. e. The density of a 2 mL sample would be half that of the 1 mL sample. ANSWER: c POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Comprehension NOTES: Grasp meaning 19. A sample has a mass of 165 g and a volume of 61.1 cm3. What is a possible identity of the sample? a. aluminum (density = 2.70 g/cm3) b. copper (density = 8.92 g/cm3) Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 6 c. silver (density = 10.5 g/cm3) d. iron (density = 7.86 g/cm3) e. mercury (density = 13.6 g/cm3) ANSWER: a POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Syntheis NOTES: Generalize from given facts 20. A sample has a mass of 612 g and a volume of 78 cm3. What is the identity of the sample? a. iron (density = 7.86 g/cm3) b. copper (density = 8.92 g/cm3) c. aluminum (density = 2.7 g/cm3) d. mercury (density = 13.6 g/cm3) e. silver (density = 10.5 g/cm3) ANSWER: a POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Synthesis NOTES: Generalize from given facts 21. If 225 mL of water at 25°C is frozen at 0.0°C, what volume of ice is created? (Density of water at 25°C = 0.997 g/mL; density of ice at 0.0°C = 0.917 g/mL) a. 224 mL b. 225 mL c. 226 mL d. 207 mL e. 245 mL ANSWER: e POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Syntheis NOTES: Relate knowledge from several areas 22. Which of the following is not a physical property of water? a. Water can be broken down into hydrogen gas and oxygen gas. b. Water is a liquid at room temperature. c. Water freezes at 32°F. d. Water boils at 100°C. e. Water is transparent to visible light. ANSWER: a POINTS: 1 Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 7 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Knowldege NOTES: Observation and recall of information 23. Which of the following does not describe a physical property? a. A lead brick sinks in water. b. Aluminum melts at 660°C. c. Paper burns to ash. d. Table sugar often appears as granulated powder. e. Elemental sulfur appears yellow in color. ANSWER: c POINTS: 1 TOPICS: 1.4 Identifying Matter: Physical Properties OTHER: Comprehension NOTES: Grasp meaning 24. Which metric prefix means 1 × 10-6? a. milli b. kilo c. pico d. micro e. nano ANSWER: d POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Knowledge NOTES: Observation and recall of information 25. Which metric prefix means 1 × 10−9? a. milli b. pico c. kilo d. micro e. nano ANSWER: e POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Knowledge NOTES: Observation and recall of information 26. There are _____ milligrams in a kilogram. a. 1 × 10−3 b. 1 × 106 Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 8 c. 1 × 10−6 d. 1 × 103 e. 1 × 109 ANSWER: b POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Knowledge NOTES: Observation and recall of information 27. There are _____ centimeters in a nanometer. a. 1 × 10−9 b. 1 × 10-3 c. 1 × 10-5 d. 1 × 10−7 e. 1 × 105 ANSWER: d POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Knowledge NOTES: Observation and recall of information 28. How many significant figures are present in each of the following: 86.9, 3.710, and 0.0492? a. three, four, three b. three, three, four c. three, four, four d. three, three, three e. three, four, five ANSWER: a POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Application NOTES: Use methods, concepts in new situations 29. What is the proper answer and number of significant figures for the following calculation: 2.80 × 4.2? a. 11.7 b. 1.2 × 101 c. 12.0 d. 11.76 e. None of these choices ANSWER: b POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 9 OTHER: Application NOTES: Use methods, concepts in new situations 30. What is the proper answer and number of significant figures for the following calculation: (28.914 - 19.3) × 8.152? a. 78.37 b. 80 c. 78.4 d. 78.373 e. 78 ANSWER: e POINTS: 1 TOPICS: 1.5 Measurements, Units, and Calculations OTHER: Application NOTES: Use methods, concepts in new situations 31. Which of the following is a chemical property of iron? a. Iron melts at 1535 °C. b. Iron rusts on exposure to water and oxygen. c. Iron can be bent into shapes. d. Iron conducts electricity. e. Iron conducts heat. ANSWER: b POINTS: 1 TOPICS: 1.6 Chemical Change and Chemical Properties OTHER: Comprehension NOTES: Grasp meaning 32. Which of the following is not a chemical property of water? a. Water and carbon dioxide are produced by the combustion of fossil fuels. b. Water boils at 100 degrees Celsius. c. Water combines with sulfur dioxide and oxygen to produce sulfuric acid. d. Water interacts with some metals to produce hydrogen gas. e. Water combines with carbon dioxide in plants to produce starches and sugars. ANSWER: b POINTS: 1 TOPICS: 1.6 Chemical Change and Chemical Properties OTHER: Comprehension NOTES: Grasp meaning 33. Which of the following describes a chemical change? a. Ethanol evaporates quickly at room temperature. b. Ethanol has a high heat capacity. c. Ethanol can be produced by the fermentation of grapes. d. Ethanol boils when heated. Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 10 e. Ethanol is a clear, colorless liquid. ANSWER: c POINTS: 1 TOPICS: 1.6 Chemical Change and Chemical Properties OTHER: Evaluation NOTES: Compare and discriminate between ideas 34. Which of the following describes a chemical change? a. grinding coffee beans b. boiling water c. fermenting wine d. crushing an aluminum can e. bending copper wire ANSWER: c POINTS: 1 TOPICS: 1.6 Chemical Change and Chemical Properties OTHER: Evaluation NOTES: Compare and discriminate between ideas 35. Which of the following substances is homogeneous? a. vegetable soup b. wood c. salt dissolved in water d. a mirror e. a jelly bean ANSWER: c POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures OTHER: Evaluation NOTES: Compare and discriminate between ideas 36. Which of the following is heterogeneous? a. a tossed salad b. a clear sugar solution c. grape juice d. copper pipe e. black coffee ANSWER: a POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures OTHER: Evaluation NOTES: Compare and discriminate between ideas 37. Sugar, coffee, and bismuth are: Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 11 a. a pure substance, a heterogeneous mixture, and an element. b. an element, a homogeneous mixture, and a pure substance. c. a homogeneous mixture, a pure substance, and a homogeneous mixture. d. an element, a pure substance, and a homogeneous mixture. e. none of these choices. ANSWER: a POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures OTHER: Evaluation NOTES: Compare and discriminate between ideas 38. Which of the following would not convert a heterogeneous mixture into a more homogeneous material? a. magnetically removing iron from an iron-sulfur mixture b. picking rice grains from a mixture of rice and peas c. filtering sand away from water d. filtering a salt solution e. doing chromatography on an ink sample ANSWER: d POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures OTHER: Synthesis NOTES: Predict, draw conclusons 39. Which is the best definition of a pure substance? a. A material whose properties cannot be changed by further physical separation b. A material that contains two or more types of atoms c. A material that has been heated d. A material whose properties have been measured e. A material in the gas phase ANSWER: a POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures OTHER: Knowledge NOTES: Knowledge of major ideas 40. Which of the following is not a solution? a. air b. alcohol in water c. ice in water d. red wine e. brass ANSWER: c POINTS: 1 TOPICS: 1.7 Classifying Matter: Substances and Mixtures Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 12 OTHER: Comprehension NOTES: Interpret facts, compare 41. Which of the following will not have a specific composition and specific properties? a. steel b. aspirin c. ammonia d. water e. ozone ANSWER: a POINTS: 1 TOPICS: 1.7 Classifying Matter: Elements and Compounds OTHER: Comprehension NOTES: Interpret facts, compare 42. A pure solid reacts with air to produce a new white solid. What can be concluded about the original solid? a. it must be an element b. it might be an element c. it must be a compound d. it might be a compound e. it could be either an element or a compound ANSWER: e POINTS: 1 TOPICS: 1.8 Classifying Matter: Elements and Compounds OTHER: Evaluation NOTES: Make choices based on reasoned argument 43. Which choice would represent a compound? a. b. c. d. e. ANSWER: c POINTS: 1 TOPICS: 1.8 Classifying Matter: Elements and Compounds OTHER: Comprehension NOTES: Interpret facts, compare Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 13 44. What does the drawing best represent? a. A pure element b. A heterogenous mixture c. A homogeneous mixture d. A pure compound e. A mixture of gases ANSWER: d POINTS: 1 TOPICS: 1.8 Classifying Matter: Elements and Compounds OTHER: Comprehension NOTES: Interpret facts, compare 45. What does the drawing best represent? a. A pure element b. A heterogenous mixture c. A homogeneous mixture d. A pure compound e. A mixture of gases Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 14 ANSWER: a POINTS: 1 TOPICS: 1.8 Classifying Matter: Elements and Compounds OTHER: Comprehension NOTES: Interpret facts, compare 46. Bacteria, sugar molecules, and water droplets are matter at the: a. microscale, nanoscale, macroscale. b. macroscale, nanoscale, microscale. c. microscale, macroscale, nanoscale. d. nanoscale, microscale, macroscale. e. none of these choices. ANSWER: a POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Comprehension NOTES: Grasp meaning 47. Three length scales ordered from smallest to largest are: a. microscale, macroscale, nanoscale. b. macroscale, nanoscale, microscale. c. microscale, nanoscale, macroscale. d. nanoscale, microscale, macroscale. e. none of these choices. ANSWER: d POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Analysis NOTES: Organization of parts 48. Which characteristic below best fits the description of a solid? a. large distances between the molecules b. molecules that are close together but are moving past one another c. rapid molecular motion d. highly disordered molecules e. highly ordered molecules ANSWER: e POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Knowledge NOTES: Knowledge of major ideas 49. Which characteristic below best fits the description of a liquid? a. large distances between the molecules Chapter 1: The Nature of Chemistry Copyright Cengage Learning. Powered by Cognero. Page 15 b. rapid molecular motion c. highly ordered molecules d. molecules that are close together but are moving past one another e. highly disordered molecules ANSWER: d POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Knowledge NOTES: Knowledge of major ideas 50. According to the Kinetic Molecular Theory, as the temperature of a compound increases: a. it freezes b. its boiling point increases c. its molecular motion increases d. its melting point increases e. all of these choices ANSWER: c POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Knowledge NOTES: Knowledge of major ideas 51. Which of the following does not occur when ice melts? a. The arrangement of molecules changes. b. The speed of the molecules changes. c. Its density changes. d. Its molecular composition changes. e. Its shape changes. ANSWER: d POINTS: 1 TOPICS: 1.9 Nanoscale Theories and Models OTHER: Comprehension NOTES: Predict consequences 52. Which characteristics apply to the gaseous state? I. low density II. high density III. rapid molecular motion IV. slow molecular motion V. large distance between particles a. II, V b. I, IV, V c. II, III, V d. I, V e. I, III, V