, TESTBANK for Chemistry for Today General,
Organic, and Biochemistry, 10th Edition Spencer L.
Seager
Notes
1- All Chapters are step by step.
2- We have shown you 10 pages.
3- The file contains all Appendix and Excel
sheet if it exists.
4- We have all what you need, we make
update at every time. There are many
new editions waiting you.
5- If you think you purchased the wrong file
You can contact us at every time, we can
replace it with true one.
Our email:
,Chapter 1 - Matter, Measurements, and Calculations
1. The mass of an object is
a. the force between the object and the earth.
b. a measure of the amount of matter in the object.
c. the amount of space the object occupies.
d. depends on the location of the object on the earth.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
2. Any two objects are attracted to each other by _____.
a. gravity b. electrostatic forces
c. magnetism d. all of them
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
3. How is the weight of an object influenced when the gravitational force on the object is increased?
a. it decreases b. it increases
c. it is unchanged d. it equals the mass
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
4. The weight of an object is
a. a measure of the gravitational force pulling the object toward the earth.
b. equal to the mass of the matter in the object.
c. a measure of the space occupied by the object.
d. the same at any location on the earth.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
5. The fact that gold does not corrode is a ______ property
a. physical b. personal c. real d. chemical
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 1 - Matter, Measurements, and Calculations
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
6. Which of the following represents a physical change in matter?
a. A substance solidifies at 443 K.
b. A substance produces a gas and a solid when heated.
c. A substance burns when heated.
d. A substance changes color when exposed to air.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
7. The melting of ice to liquid water is correctly classified as
a. a chemical change.
b. a physical change.
c. both a chemical and a physical change.
d. neither a chemical nor physical change.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
8. Which of the following is a physical property of matter?
a. it does not burn
b. produces a gas when placed in an acid
c. freezes at −10°F
d. the surface turns black in air
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
9. Which of the following is a chemical property of matter?
a. color b. density
c. freezing point d. flammability
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 1 - Matter, Measurements, and Calculations
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
10. As two clear liquid solutions are thoroughly mixed, a red solid forms. This change is most likely _____.
a. physical. b. chemical.
c. neither chemical nor physical. d. both chemical and physical.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
11. The limit of chemical subdivision of an element is the _____.
a. atom b. molecule c. proton d. compound
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.2.1 - Describe Democritus' original idea of an atom.
KEYWORDS: Chemistry
12. Which of the following substances are composed of heteroatomic molecules?
a. an iron nail b. oxygen c. copper wire d. water
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
13. A molecule represented by O-O-O must be classified as
a. homoatomic and polyatomic. b. homoatomic and monoatomic.
c. heteroatomic and polyatomic. d. heteroatomic and monoatomic.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
14. Which of the following terms correctly applies to a molecule of CO2?
a. triatomic, heteroatomic b. polyatomic, diatomic
Copyright Cengage Learning. Powered by Cognero. Page 3
,Chapter 1 - Matter, Measurements, and Calculations
c. triatomic, homoatomic d. diatomic, heteroatomic
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
15. Table salt, NaCl is best classified as a(n) _____ .
a. compound b. element
c. homogeneous mixture d. heterogeneous mixture
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
16. The limit of physical subdivision of pure H2O is _____ .
a. the atom b. the molecule c. the element d. a proton
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.2.2 - Explain Dalton's theory of the atom.
KEYWORDS: Chemistry
17. Homoatomic pure substances are known as _____ .
a. protons b. elements c. compound d. molecules
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
18. After heating, a pure substance, A, is found to produce both B and C. What can be said about the substance A?
a. It is an element b. It is a compound
c. It is either an element or compound d. Impossible to predict
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
Copyright Cengage Learning. Powered by Cognero. Page 4
,Chapter 1 - Matter, Measurements, and Calculations
KEYWORDS: Chemistry
19. Two pure substances A and B react to form a new pure substance C. From this, we may conclude that
a. A and B are both elements
b. C is a compound, A and B may or may not be elements
c. C is an element, A and B are compounds
d. A, B, and C are all compounds
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
20. Which of the following is an example of a homogeneous mixture?
a. NaOH solution
b. mortar (mixture of water, sand and cement)
c. vinegar and oil salad dressing
d. more than one response is correct
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.3 - Differentiate between homogenous and heterogenous mixtures.
KEYWORDS: Chemistry
21. Which of the following consists of a single chemical species?
a. solution b. homogeneous mixture
c. heterogeneous mixture d. compound
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
22. Early measurements of length were based on
a. dimensions of astronomical bodies. b. dimensions of the human body.
c. dimensions of bodies of water. d. distances between cities.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
Copyright Cengage Learning. Powered by Cognero. Page 5
,Chapter 1 - Matter, Measurements, and Calculations
KEYWORDS: Chemistry
23. The metric system is a measurement system that is
a. the official system for all nations of the world.
b. only used by a few of the nations of the world.
c. commonly used by U.S. physical scientists.
d. used exclusively in chemical calculations.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.1 - Differentiate between metric and English units.
KEYWORDS: Chemistry
24. The basic unit of length in the metric system is the _____ .
a. mil b. millimeter c. foot d. meter
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
25. Which of the following is an SI unit?
a. gram b. liter c. meter d. calorie
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
26. The prefix centi- denotes what fraction of a basic unit?
a. 1/10 b. 1/100 c. 1/1000 d. 1000
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.2 - Identify appropriate metric prefixes.
KEYWORDS: Chemistry
27. Which of the following is a derived unit of the S.I. system?
a. kilogram b. meter c. liter d. mole
ANSWER: c
Copyright Cengage Learning. Powered by Cognero. Page 6
,Chapter 1 - Matter, Measurements, and Calculations
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
28. Convert a temperature of 76°F to a Celsius value.
a. 10 b. 24 c. 44 d. 169
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.5.1 - Identify conversion factors.
KEYWORDS: Chemistry
29. Which of the following numbers is correctly expressed using scientific notation?
a. 3489 b. 5.248 × 104 c. 45.78 × 106 d. .0987 × 103
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.2 - Convert a number between standard and scientific notation.
KEYWORDS: Chemistry
30. Do the following calculation and express the answer using correct scientific notation.
______ = (2.97 × 102) × (6.09 × 10−7)
a. 5.53 × 103 b. 1.81 × 10−4 c. 4.88 × 108 d. 2.05 × 10−9
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.3 - Perform math with numbers that are expressed in scientific
notation.
KEYWORDS: Chemistry
31. Do the following calculation, and express the answer using correct scientific notation.
______ = (6.00 × 1023) × (3.00) / (284)
a. 6.34 × 1021 b. 1.58 × 10−22 c. 6.34 × 10−2 d. 15.8
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.3 - Perform math with numbers that are expressed in scientific
notation.
KEYWORDS: Chemistry
Copyright Cengage Learning. Powered by Cognero. Page 7
, Chapter 1 - Matter, Measurements, and Calculations
32. The number 0.00816 expressed correctly using scientific notation is _____ .
a. 8.16 × 102 b. 8.16 × 103 c. 8.16 × 10−2 d. 8.16 × 10−3
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.2 - Convert a number between standard and scientific notation.
KEYWORDS: Chemistry
33. How many significant figures are justified in a measurement of a length that is between 9 and 10 centimeters if the
measuring device (ruler) has smallest divisions of 0.1 cm?
a. one b. two c. three d. four
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
34. How many significant figures are used in expressing a measurement as 0.2503 L?
a. one b. two c. three d. four
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
35. Which number has the greatest number of significant digits?
a. 1.0035 b. 17.5000 c. 0.0000625 d. 6.022 × 1023
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
36. Do the following calculation and express the answer using the correct number of significant figures. ______ = (342)
× (0.0012) ÷ 100.0
a. 0.00410 b. 0.0041 c. 4.10 × 10−3 d. 0.004104
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.4 - Explain the rules for carrying significant figures through
multiplication, division, and exponentiation operations.
KEYWORDS: Chemistry
Copyright Cengage Learning. Powered by Cognero. Page 8
Organic, and Biochemistry, 10th Edition Spencer L.
Seager
Notes
1- All Chapters are step by step.
2- We have shown you 10 pages.
3- The file contains all Appendix and Excel
sheet if it exists.
4- We have all what you need, we make
update at every time. There are many
new editions waiting you.
5- If you think you purchased the wrong file
You can contact us at every time, we can
replace it with true one.
Our email:
,Chapter 1 - Matter, Measurements, and Calculations
1. The mass of an object is
a. the force between the object and the earth.
b. a measure of the amount of matter in the object.
c. the amount of space the object occupies.
d. depends on the location of the object on the earth.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
2. Any two objects are attracted to each other by _____.
a. gravity b. electrostatic forces
c. magnetism d. all of them
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
3. How is the weight of an object influenced when the gravitational force on the object is increased?
a. it decreases b. it increases
c. it is unchanged d. it equals the mass
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
4. The weight of an object is
a. a measure of the gravitational force pulling the object toward the earth.
b. equal to the mass of the matter in the object.
c. a measure of the space occupied by the object.
d. the same at any location on the earth.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.2 - Define Matter.
KEYWORDS: Chemistry
5. The fact that gold does not corrode is a ______ property
a. physical b. personal c. real d. chemical
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 1 - Matter, Measurements, and Calculations
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
6. Which of the following represents a physical change in matter?
a. A substance solidifies at 443 K.
b. A substance produces a gas and a solid when heated.
c. A substance burns when heated.
d. A substance changes color when exposed to air.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
7. The melting of ice to liquid water is correctly classified as
a. a chemical change.
b. a physical change.
c. both a chemical and a physical change.
d. neither a chemical nor physical change.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
8. Which of the following is a physical property of matter?
a. it does not burn
b. produces a gas when placed in an acid
c. freezes at −10°F
d. the surface turns black in air
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
9. Which of the following is a chemical property of matter?
a. color b. density
c. freezing point d. flammability
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 1 - Matter, Measurements, and Calculations
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.3 - Differentiate between physical and chemical properties of matter.
KEYWORDS: Chemistry
10. As two clear liquid solutions are thoroughly mixed, a red solid forms. This change is most likely _____.
a. physical. b. chemical.
c. neither chemical nor physical. d. both chemical and physical.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO2.1.4 - Differentiate between physical and chemical changes in matter.
KEYWORDS: Chemistry
11. The limit of chemical subdivision of an element is the _____.
a. atom b. molecule c. proton d. compound
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.2.1 - Describe Democritus' original idea of an atom.
KEYWORDS: Chemistry
12. Which of the following substances are composed of heteroatomic molecules?
a. an iron nail b. oxygen c. copper wire d. water
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
13. A molecule represented by O-O-O must be classified as
a. homoatomic and polyatomic. b. homoatomic and monoatomic.
c. heteroatomic and polyatomic. d. heteroatomic and monoatomic.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
14. Which of the following terms correctly applies to a molecule of CO2?
a. triatomic, heteroatomic b. polyatomic, diatomic
Copyright Cengage Learning. Powered by Cognero. Page 3
,Chapter 1 - Matter, Measurements, and Calculations
c. triatomic, homoatomic d. diatomic, heteroatomic
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.2 - Differentiate between compounds, molecules, and elements.
KEYWORDS: Chemistry
15. Table salt, NaCl is best classified as a(n) _____ .
a. compound b. element
c. homogeneous mixture d. heterogeneous mixture
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
16. The limit of physical subdivision of pure H2O is _____ .
a. the atom b. the molecule c. the element d. a proton
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.2.2 - Explain Dalton's theory of the atom.
KEYWORDS: Chemistry
17. Homoatomic pure substances are known as _____ .
a. protons b. elements c. compound d. molecules
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
18. After heating, a pure substance, A, is found to produce both B and C. What can be said about the substance A?
a. It is an element b. It is a compound
c. It is either an element or compound d. Impossible to predict
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
Copyright Cengage Learning. Powered by Cognero. Page 4
,Chapter 1 - Matter, Measurements, and Calculations
KEYWORDS: Chemistry
19. Two pure substances A and B react to form a new pure substance C. From this, we may conclude that
a. A and B are both elements
b. C is a compound, A and B may or may not be elements
c. C is an element, A and B are compounds
d. A, B, and C are all compounds
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
20. Which of the following is an example of a homogeneous mixture?
a. NaOH solution
b. mortar (mixture of water, sand and cement)
c. vinegar and oil salad dressing
d. more than one response is correct
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.3 - Differentiate between homogenous and heterogenous mixtures.
KEYWORDS: Chemistry
21. Which of the following consists of a single chemical species?
a. solution b. homogeneous mixture
c. heterogeneous mixture d. compound
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO3.1.5 - Classify matter as a compound, element, heterogenous mixture,
or homogenous mixture.
KEYWORDS: Chemistry
22. Early measurements of length were based on
a. dimensions of astronomical bodies. b. dimensions of the human body.
c. dimensions of bodies of water. d. distances between cities.
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
Copyright Cengage Learning. Powered by Cognero. Page 5
,Chapter 1 - Matter, Measurements, and Calculations
KEYWORDS: Chemistry
23. The metric system is a measurement system that is
a. the official system for all nations of the world.
b. only used by a few of the nations of the world.
c. commonly used by U.S. physical scientists.
d. used exclusively in chemical calculations.
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.1 - Differentiate between metric and English units.
KEYWORDS: Chemistry
24. The basic unit of length in the metric system is the _____ .
a. mil b. millimeter c. foot d. meter
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
25. Which of the following is an SI unit?
a. gram b. liter c. meter d. calorie
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
26. The prefix centi- denotes what fraction of a basic unit?
a. 1/10 b. 1/100 c. 1/1000 d. 1000
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.2 - Identify appropriate metric prefixes.
KEYWORDS: Chemistry
27. Which of the following is a derived unit of the S.I. system?
a. kilogram b. meter c. liter d. mole
ANSWER: c
Copyright Cengage Learning. Powered by Cognero. Page 6
,Chapter 1 - Matter, Measurements, and Calculations
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.4.3 - Identify standard units of measurement for length, volume, mass,
time, and temperature.
KEYWORDS: Chemistry
28. Convert a temperature of 76°F to a Celsius value.
a. 10 b. 24 c. 44 d. 169
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.5.1 - Identify conversion factors.
KEYWORDS: Chemistry
29. Which of the following numbers is correctly expressed using scientific notation?
a. 3489 b. 5.248 × 104 c. 45.78 × 106 d. .0987 × 103
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.2 - Convert a number between standard and scientific notation.
KEYWORDS: Chemistry
30. Do the following calculation and express the answer using correct scientific notation.
______ = (2.97 × 102) × (6.09 × 10−7)
a. 5.53 × 103 b. 1.81 × 10−4 c. 4.88 × 108 d. 2.05 × 10−9
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.3 - Perform math with numbers that are expressed in scientific
notation.
KEYWORDS: Chemistry
31. Do the following calculation, and express the answer using correct scientific notation.
______ = (6.00 × 1023) × (3.00) / (284)
a. 6.34 × 1021 b. 1.58 × 10−22 c. 6.34 × 10−2 d. 15.8
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.3 - Perform math with numbers that are expressed in scientific
notation.
KEYWORDS: Chemistry
Copyright Cengage Learning. Powered by Cognero. Page 7
, Chapter 1 - Matter, Measurements, and Calculations
32. The number 0.00816 expressed correctly using scientific notation is _____ .
a. 8.16 × 102 b. 8.16 × 103 c. 8.16 × 10−2 d. 8.16 × 10−3
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.2.2 - Convert a number between standard and scientific notation.
KEYWORDS: Chemistry
33. How many significant figures are justified in a measurement of a length that is between 9 and 10 centimeters if the
measuring device (ruler) has smallest divisions of 0.1 cm?
a. one b. two c. three d. four
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
34. How many significant figures are used in expressing a measurement as 0.2503 L?
a. one b. two c. three d. four
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
35. Which number has the greatest number of significant digits?
a. 1.0035 b. 17.5000 c. 0.0000625 d. 6.022 × 1023
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.2 - Identify the number of significant digits in a numerical value.
KEYWORDS: Chemistry
36. Do the following calculation and express the answer using the correct number of significant figures. ______ = (342)
× (0.0012) ÷ 100.0
a. 0.00410 b. 0.0041 c. 4.10 × 10−3 d. 0.004104
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
LEARNING OBJECTIVES: GOBC LO1.3.4 - Explain the rules for carrying significant figures through
multiplication, division, and exponentiation operations.
KEYWORDS: Chemistry
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