Chapter 03— Matter.docx

Chapter 03--- Matter DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 19\. How many of the following are pure compounds? sodium, sugar, oxygen, air, iron a\. 1 b\. 2 c\. 3 d\. 4 e\. 5 ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: Fa...

Chapter 03--- Matter DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 19\. How many of the following are pure compounds? sodium, sugar, oxygen, air, iron a\. 1 b\. 2 c\. 3 d\. 4 e\. 5 ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 20\. A(n) always has the same composition. ANSWER: compound POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Subjective Short Answer HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound \| law of definite proportions OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 21\. Which of the following is an element? a\. Aluminum b\. Gas c\. Water d\. Air e\. Sugar ANSWER: a POINTS: 1 DIFFICULTY: Moderate Copyright Cengage Learning. Powered by Cognero. Page 8 Chapter 03--- Matter QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: Elements and Compounds KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/5/2018 1:23 AM 22\. True or false? A compound can consist of one kind of element. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 23\. Which of the following is an element? a\. brass b\. salt c\. water d\. earth e\. oxygen ANSWER: e POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 24\. Which of these is an element? a\. water b\. iron ore Copyright Cengage Learning. Powered by Cognero. Page 9 Chapter 03--- Matter c\. wood d\. silver e\. brass ANSWER: d POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 25\. is an example of a mixture. a\. Hydrogen fluoride b\. Pure water c\. Gold d\. Air e\. All of these ANSWER: d POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Mixtures and Pure Substances KEYWORDS: mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/3/2018 10:19 PM 26\. An example of a pure substance is a\. elements b\. compounds c\. pure water d\. carbon dioxide e\. all of these ANSWER: e POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False Copyright Cengage Learning. Powered by Cognero. Page 10 Chapter 03--- Matter TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 27\. Which of the following is an incorrect description? a\. A homogeneous mixture b\. A heterogeneous compound c\. A solid element d\. A mixture of solids e\. A solution of gases ANSWER: b POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Elements and Compounds, Mixtures and Pure Substances KEYWORDS: heterogeneous mixture \| mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/5/2018 1:26 AM 28\. A homogeneous mixture is also called. a\. a heterogeneous mixture. b\. a pure substance. c\. a compound. d\. a solution. e\. an element. ANSWER: d POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: homogeneous mixture \| mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 29\. Classify each of the following into an element (A), a compound (B), a homogeneous mixture (C), or a heterogeneous mixture (D). Copyright Cengage Learning. Powered by Cognero. Page 11 Chapter 03--- Matter a\. Table salt b\. Chlorine gas c\. Sand in water d\. Petroleum e\. Caffeine ANSWER: a. B b\. B c\. D d\. D e\. B POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Subjective Short Answer HAS VARIABLES: False TOPICS: Elements and Compounds, Mixtures and Pure Substances KEYWORDS: element \| mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/3/2018 10:25 PM 30\. Water is an example of a\. a homogeneous mixture b\. a heterogeneous mixture c\. a compound d\. an element ANSWER: c POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 31\. A solution can be distinguished from a compound by its a\. variable composition b\. liquid state c\. heterogeneous nature d\. lack of color ANSWER: a POINTS: 1 Copyright Cengage Learning. Powered by Cognero. Page 12 Chapter 03--- Matter DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: mixture \| solution OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 32\. Which of the following is an element? a\. iron b\. wood c\. water d\. blood e\. none of these ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 33\. Classify each of the following into an element (E), a compound (C), or a mixture (M). a\. 14K gold b\. Pure silver c\. Aluminum d\. Distilled water e\. Tap water f\. Brass g\. Tungsten h\. Sodium chloride i\. Air ANSWER: a. M b\. E c\. E d\. C e\. M f\. M g\. E Copyright Cengage Learning. Powered by Cognero. Page 13 Chapter 03--- Matter h\. C i\. M POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Subjective Short Answer HAS VARIABLES: False TOPICS: Elements and Compounds, Mixtures and Pure Substances KEYWORDS: compound \| element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/5/2018 1:27 AM 34\. Which is an example of a homogeneous mixture? a\. vodka b\. oily water c\. soil (dust) d\. sodium chloride e\. aluminum ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: homogeneous mixture \| mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 35\. Helium is an example of a\. a homogeneous mixture b\. a heterogeneous mixture c\. a compound d\. an element ANSWER: d POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element Copyright Cengage Learning. Powered by Cognero. Page 14 Chapter 03--- Matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 36\. The process of filtering a sand-saltwater mixture is a process. ANSWER: physical POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Subjective Short Answer HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: heterogeneous mixture \| mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 37\. Which of the following processes require(s) chemical methods? a\. Separating a homogeneous mixture into pure substances. b\. Separating a heterogeneous mixture into pure substances. c\. Distilling a saltwater mixture. d\. Breaking a compound into its constituent elements. e\. At least two of the above (a-d) require chemical methods. ANSWER: d POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 38\. Which of the following processes is a chemical change? a\. Dry ice sublimes when left on the demo table in lecture. b\. The light on a candle burns until a bell jar is placed over it for a period of time. c\. When a few drops of red food coloring are added to a beaker of hot water, the water immediately turns red. d\. Liquid nitrogen dumped onto the floor vaporizes at room temperature. e\. None of the above processes are chemical changes. ANSWER: b POINTS: 1 Copyright Cengage Learning. Powered by Cognero. Page 15 Chapter 03--- Matter DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: Law of Conservation of Mass OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 39\. How many of the following are compounds? H2O, N2O4, NaOH, MnO2, HF a\. 1 b\. 2 c\. 3 d\. 4 e\. 5 ANSWER: e POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 40\. Which of the following is a homogeneous mixture? a\. Pure water b\. Gasoline c\. Sodium chloride d\. Soil e\. Copper metal ANSWER: b POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Mixtures and Pure Substances KEYWORDS: mixture OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM Copyright Cengage Learning. Powered by Cognero. Page 16 Chapter 03--- Matter DATE MODIFIED: 1/4/2018 12:21 AM 41\. True or false? Two or more atoms bonded together always form a compound. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 42\. True or false? An element consists of only single atoms of that element. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 43\. True or false? A solid substance is not considered matter. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry Copyright Cengage Learning. Powered by Cognero. Page 17 Chapter 03--- Matter DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 44\. Carbon dioxide can exist only in the gaseous state. Is this statement true or false? a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: Matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/4/2018 12:25 AM 45\. Diamond is a state of matter. a\. solid b\. liquid c\. gaseous d\. unknown ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 46\. True or false? The normal boiling point of water is 100oC, which is a physical property of the substance water. a\. True b\. False ANSWER: True POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts Copyright Cengage Learning. Powered by Cognero. Page 18 Chapter 03--- Matter matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 47\. True or false? Gold is a relatively soft metal, which is a chemical property of the substance gold. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: element OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 48\. A change involves a change in one or more physical properties but no change in the fundamental components that make up the substance. a\. chemical b\. physical c\. mixed d\. potential e\. kinetic ANSWER: b POINTS: 1 DIFFICULTY: Easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: Physical and Chemical Properties and Changes KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/5/2018 1:29 AM 49\. A change involves a change in the fundamental components of the substance; a given substance changes into a different substance or substances. a\. chemical b\. physical c\. mixed Copyright Cengage Learning. Powered by Cognero. Page 19 Chapter 03--- Matter d\. potential e\. kinetic ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: Law of Conservation of Mass OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 50\. True or false? Metal rusting is an example of a chemical change. a\. True b\. False ANSWER: True POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: Law of Conservation of Mass OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 51\. True or false? Juice freezing into a popsicle is an example of a physical change. a\. True b\. False ANSWER: True POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM Copyright Cengage Learning. Powered by Cognero. Page 20 Chapter 03--- Matter 52\. True or false? Dry ice subliming (turning from a solid straight into a gas) is an example of a chemical change. a\. True b\. False ANSWER: False POINTS: 1 DIFFICULTY: easy QUESTION TYPE: True / False HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 53\. How many of the following are pure substances? (Check all that apply.) a\. water b\. air c\. carbon d\. brass e\. gold f\. ammonia ANSWER: a, c, e, f POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Response HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 54\. Which of the following are compounds? (Check all that apply.) a\. Water b\. Air c\. Carbon d\. Brass e\. Gold f\. Ammonia ANSWER: a, f Copyright Cengage Learning. Powered by Cognero. Page 21 Chapter 03--- Matter POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Response HAS VARIABLES: False TOPICS: Elements and Compounds KEYWORDS: compound OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/4/2018 12:31 AM 55\. A sample of a liquid does not have a definite a\. mass b\. density c\. volume d\. shape e\. all of these are definite for a sample of a liquid ANSWER: d POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: solid \| states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 56\. A sample of a gas has a definite a\. mass b\. density c\. volume d\. shape e\. none of these are definite for a sample of a gas ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: solid \| states of matter OTHER: general chemistry Copyright Cengage Learning. Powered by Cognero. Page 22 Chapter 03--- Matter DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 57\. Which of the following is not a physical change? a\. boiling a liquid b\. melting a solid c\. condensing a gas d\. freezing a liquid e\. burning a liquid ANSWER: e POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: physical property OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 58\. Which of the following is a chemical change? a\. boiling a liquid b\. melting a solid c\. condensing a gas d\. freezing a liquid e\. burning a liquid ANSWER: e POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: chemical property OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 59\. In which phase of water are the molecules close together and in relatively rigid positions? a\. solid b\. liquid c\. gas Copyright Cengage Learning. Powered by Cognero. Page 23 Chapter 03--- Matter d\. steam e\. plasma ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 60\. In which phase of water are the molecules close together but able to move around to some extent? a\. solid b\. liquid c\. gas d\. steam e\. plasma ANSWER: b POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/4/2018 1:09 AM 61\. In which phase of water are the molecules far part and move randomly? a\. solid b\. liquid c\. gas d\. ice e\. plasma ANSWER: c POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multi-Mode (Multiple choice) HAS VARIABLES: False Copyright Cengage Learning. Powered by Cognero. Page 24 Chapter 03--- Matter TOPICS: general concepts matter KEYWORDS: states of matter OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 62\. Which of the following phase conversions is usually involved in distillation? a\. Solid to liquid b. Liquid to solid c\. Liquid to gas d. Solid to gas e\. Gas to solid ANSWER: c POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Separation of Mixtures KEYWORDS: distillation \| separations OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 1/4/2018 1:08 AM 63\. Filtration usually involves separating which phases from a mixture? a\. solid from liquid b. solid from gas c\. liquid from gas d. liquid from liquid e\. solid from solid ANSWER: a POINTS: 1 DIFFICULTY: easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: geenral concepts matter KEYWORDS: filtration \| separations OTHER: general chemistry DATE CREATED: 12/23/2013 2:41 PM DATE MODIFIED: 12/23/2013 2:41 PM 64\. The smallest unit of a chemical compound is a(n). a\. atom b\. molecule c\. nucleus d\. electrons e\. alpha particle Copyright Cengage Learning. Powered by Cognero. Page 25 Chapter 03--- Matter ANSWER: b POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Elements and Compounds DATE CREATED: 1/4/2018 12:48 AM DATE MODIFIED: 1/4/2018 1:16 AM 65\. Which of the following is a heterogeneous mixture? a\. Crude oil b\. Rubbing alcohol c\. Steam d\. Salt water e\. Brass ANSWER: a POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: Mixtures and Pure substances DATE CREATED: 1/4/2018 12:54 AM DATE MODIFIED: 1/4/2018 1:15 AM 66\. Which of the following states a chemical property? a\. Xenon is an inert gas. b\. Aluminum is a very conductive metal. c\. Chlorine is a greenish gas. d\. Oxygen is a gas. e\. Ice melts at 0°C. ANSWER: a POINTS: 1 DIFFICULTY: Moderate QUESTION TYPE: Multiple Choice HAS VARIABLES: True TOPICS: Physical and Chemical Properties and Changes KEYWORDS: chemical property OTHER: general chemistry DATE CREATED: 1/8/2018 1:58 AM DATE MODIFIED: 1/8/2018 2:03 AM