Chapter 01
Insight into Aluminum
1. What properties of aluminum might cause you concern if you had to use the aluminum tableware that Napoleon
employed to impress his guests?
ANSWER: Al tableware would be very susceptible to rapid oxidation and would have to be polished
frequently.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/18/2018 4:37 AM
2. Use the web to determine the amount of aluminum used in the US in a single year. What is the primary use for this
material?
ANSWER: Utilize a world wide web search engine to acquire the reference.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 12/23/2013 1:59 PM
3. Use the web to determine the difference in how much aluminum is recycled in states where there are deposits on
aluminum cans versus states in which recycling is voluntary. What is the most reliable way to estimate this value? What
uncertainty is there in this estimate?
ANSWER: Utilize a world wide web search engine to acquire the reference.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:39 AM
The Study of Chemistry
4. Which of the following items are matter and which are not?
a) A flashlight
b) Sunlight
c) An echo
d) Air at sea level
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 01
e) Air at the top of Mount Everest
ANSWER: a) matter
b) not matter
c) not matter
d) matter
e) matter
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:42 AM
5. How can a liquid be distinguished from a fine powder? What type of experiment or observation might be undertaken?
ANSWER: Experiments related to the physical properties of the liquid and the fine powder would prove useful.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:44 AM
6. Do the terms element and atom mean the same thing? If not, how do they differ?
ANSWER: The terms element and atom are not the same. An element is a pure substance, but the natural occurring
form of an element may contain two atoms. An example of this is elemental nitrogen (N2). In this case,
the element has two atoms.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:46 AM
D:
7. Why do physical properties play a role in chemistry if they do not involve any chemical changes?
ANSWER: Physical properties can be used to identify substances in qualitative and quantitative analysis and can
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 01
provide a wide range of useful information.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:54 AM
D:
8. Explain chemical properties with an example.
ANSWER: Chemical properties are associated with the types of chemical changes that a substance undergoes. For
example, some materials burn readily, whereas others do not. Burning of any substance in the presence
of oxygen is a chemical reaction called combustion.
POINTS: 1
DIFFICULTY: Easy
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:50 AM
D:
9. All molecules attract each other to some extent, and the attraction decreases as the distance between particles increases.
Based on this idea, which state of matter would you expect has the strongest interactions between particles----: solids,
liquids or gases?
ANSWER: Intermolecular forces of attraction are greatest in solids, as we will learn in further detail in Chapter
8.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:53 AM
Copyright Cengage Learning. Powered by Cognero. Page 3
, Chapter 01
Observations and Models
10. Data that have a small random error may be:
(accurate, precise, both, or neither).
ANSWER: Data that have a small random error are precise and may be accurate.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Observations and Models
TOPICS: The Science of Chemistry: Observations, Models, and Systems
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:57 AM
11. Two golfers are practicing shots around a putting green. Each golfer takes 20 shots. Golfer 1 has 7 shots within 1
meter of the hole, and the other 13 shots are scattered around the green. Golfer 2 has 17 shots that go into a small sand
trap near the green and three just on the green near the trap. Which golfer is more precise? Which is more accurate?
ANSWER: Golfer 2 is more precise because his efforts are grouped more tightly about a central point (the small
sand trap) even if it's not the intended spot. Golfer 1 is more accurate as there are more shots very close
to the accepted "value" (the hole).
POINTS: 1
DIFFICULTY: Difficult
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM Observations and Models
E:
TOPICS: The Science of Chemistry: Observations, Models, and Systems
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 3:02 AM
D:
12. James provides Martha with two statements: "All bald men are intelligent" and "Lance is bald." Based on the
statements, Martha concludes that Lance is intelligent. What type of reasoning (deductive or inductive) did Martha use to
arrive at this conclusion?
ANSWER: Martha used deductive reasoning to arrive at this conclusion. The two statements represent pieces of
information that are processed and lead to the conclusion that "Lance is intelligent."
POINTS: 1
DIFFICULTY: Difficult
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM Observations and Models
E:
TOPICS: The Science of Chemistry: Observations, Models, and Systems
Copyright Cengage Learning. Powered by Cognero. Page 4
Insight into Aluminum
1. What properties of aluminum might cause you concern if you had to use the aluminum tableware that Napoleon
employed to impress his guests?
ANSWER: Al tableware would be very susceptible to rapid oxidation and would have to be polished
frequently.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/18/2018 4:37 AM
2. Use the web to determine the amount of aluminum used in the US in a single year. What is the primary use for this
material?
ANSWER: Utilize a world wide web search engine to acquire the reference.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 12/23/2013 1:59 PM
3. Use the web to determine the difference in how much aluminum is recycled in states where there are deposits on
aluminum cans versus states in which recycling is voluntary. What is the most reliable way to estimate this value? What
uncertainty is there in this estimate?
ANSWER: Utilize a world wide web search engine to acquire the reference.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Insight into Al
TOPICS: Insight into Aluminum
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:39 AM
The Study of Chemistry
4. Which of the following items are matter and which are not?
a) A flashlight
b) Sunlight
c) An echo
d) Air at sea level
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 01
e) Air at the top of Mount Everest
ANSWER: a) matter
b) not matter
c) not matter
d) matter
e) matter
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:42 AM
5. How can a liquid be distinguished from a fine powder? What type of experiment or observation might be undertaken?
ANSWER: Experiments related to the physical properties of the liquid and the fine powder would prove useful.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:44 AM
6. Do the terms element and atom mean the same thing? If not, how do they differ?
ANSWER: The terms element and atom are not the same. An element is a pure substance, but the natural occurring
form of an element may contain two atoms. An example of this is elemental nitrogen (N2). In this case,
the element has two atoms.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:46 AM
D:
7. Why do physical properties play a role in chemistry if they do not involve any chemical changes?
ANSWER: Physical properties can be used to identify substances in qualitative and quantitative analysis and can
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 01
provide a wide range of useful information.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:54 AM
D:
8. Explain chemical properties with an example.
ANSWER: Chemical properties are associated with the types of chemical changes that a substance undergoes. For
example, some materials burn readily, whereas others do not. Burning of any substance in the presence
of oxygen is a chemical reaction called combustion.
POINTS: 1
DIFFICULTY: Easy
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM The Study of Chem
E:
TOPICS: The Study of Chemistry
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 1:50 AM
D:
9. All molecules attract each other to some extent, and the attraction decreases as the distance between particles increases.
Based on this idea, which state of matter would you expect has the strongest interactions between particles----: solids,
liquids or gases?
ANSWER: Intermolecular forces of attraction are greatest in solids, as we will learn in further detail in Chapter
8.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: The Study of Chem
TOPICS: The Study of Chemistry
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:53 AM
Copyright Cengage Learning. Powered by Cognero. Page 3
, Chapter 01
Observations and Models
10. Data that have a small random error may be:
(accurate, precise, both, or neither).
ANSWER: Data that have a small random error are precise and may be accurate.
POINTS: 1
DIFFICULTY: Moderate
QUESTION TYPE: Subjective Short Answer
HAS VARIABLES: False
PREFACE NAME: Observations and Models
TOPICS: The Science of Chemistry: Observations, Models, and Systems
DATE CREATED: 12/23/2013 1:59 PM
DATE MODIFIED: 1/19/2018 1:57 AM
11. Two golfers are practicing shots around a putting green. Each golfer takes 20 shots. Golfer 1 has 7 shots within 1
meter of the hole, and the other 13 shots are scattered around the green. Golfer 2 has 17 shots that go into a small sand
trap near the green and three just on the green near the trap. Which golfer is more precise? Which is more accurate?
ANSWER: Golfer 2 is more precise because his efforts are grouped more tightly about a central point (the small
sand trap) even if it's not the intended spot. Golfer 1 is more accurate as there are more shots very close
to the accepted "value" (the hole).
POINTS: 1
DIFFICULTY: Difficult
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM Observations and Models
E:
TOPICS: The Science of Chemistry: Observations, Models, and Systems
DATE CREATE 12/23/2013 1:59 PM
D:
DATE MODIFIE 1/19/2018 3:02 AM
D:
12. James provides Martha with two statements: "All bald men are intelligent" and "Lance is bald." Based on the
statements, Martha concludes that Lance is intelligent. What type of reasoning (deductive or inductive) did Martha use to
arrive at this conclusion?
ANSWER: Martha used deductive reasoning to arrive at this conclusion. The two statements represent pieces of
information that are processed and lead to the conclusion that "Lance is intelligent."
POINTS: 1
DIFFICULTY: Difficult
QUESTION TYP Subjective Short Answer
E:
HAS VARIABLE False
S:
PREFACE NAM Observations and Models
E:
TOPICS: The Science of Chemistry: Observations, Models, and Systems
Copyright Cengage Learning. Powered by Cognero. Page 4
