Question 1

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Accepted Answer

A)  159°F
B)  133°F
C)  101°F
D)  69.0°F
E)  43.4°FF) B) and C)
G) A) and E)

Question 2

Which of the following abbreviations of the given SI base unit is incorrect?

Accepted Answer

A)  second: s
B)  kilogram: kg
C)  meter: m
D)  mole: mol
E)  kelvin: kF) C) and E)
G) A) and E)

Question 3

Which of the following represents the largest volume?

Accepted Answer

A)  10,000 µL
B)  1000 pL
C)  100 mL
D)  10 nL
E)  10 cm 3F) A) and E)
G) A) and B)

Question 4

A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its

Accepted Answer

A)  accuracy.
B)  precision.
C)  systematic error.
D)  determinate error.
E)  human error.F) A) and E)
G) All of the above

Question 5

A dose of medication was prescribed to be 35 microliters. Which of the following expresses that volume in centiliters?

Accepted Answer

A)  3.5 × 10 5 cL
B)  3.5 × 10 4 cL
C)  3.5 cL
D)  3.5 × 10 −4 cL
E)  3.5 × 10 −3 cLF) B) and D)
G) None of the above

Question 6

Which of the following processes and concepts is not a part of the "scientific method"?

Accepted Answer

A)  Experiment
B)  Observation
C)  Model
D)  Speculation
E)  LawF) A) and C)
G) None of the above

Question 7

Express 96,342 m using 2 significant figures.

Accepted Answer

A)  9.60 × 10 4 m
B)  9.6 × 10 4 m
C)  9.60 × 10 -4 m
D)  9.6 × 10 -4 m
E)  96000. mF) A) and B)
G) A) and C)

Question 8

Which of the following is a chemical change?

Accepted Answer

A)  Boiling of water
B)  Melting wax
C)  Broiling a steak on a grill
D)  Condensing water vapor into rainfall
E)  Carving a piece of woodF) A) and C)
G) A) and D)

Question 9

Select the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm × 9.6114 g ÷ 1.4783 cm2 =

Accepted Answer

A)  105.2 g/cm 3
B)  105.2 g/cm 2
C)  105.2 g/cm
D)  72.13 g/cm 2
E)  72.13 g/cmF) B) and D)
G) B) and C)

Question 10

The average distance from Earth to the Sun is 150 megameters. What is that distance in meters?

Accepted Answer

A)  1.5 × 10 8 m
B)  1.5 × 10 6 m
C)  1.5 × 10 5 m
D)  1.5 × 10 3 m
E)  1.5 × 10 −6 mF) C) and D)
G) None of the above

Question 11

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Accepted Answer

A)  1.34 × 10 −13 m
B)  1.34 × 10 −12 m
C)  1.34 × 10 −10 m
D)  1.34 × 10 −7 m
E)  1.34 × 10 −6 mF) A) and B)
G) C) and D)

Question 12

Given that 1 inch = 2.54 cm, 1 cm3 is equal to

Accepted Answer

A)  16.4 in 3.
B)  6.45 in 3.
C)  0.394 in 3.
D)  0.155 in 3.
E)  0.0610 in 3.F) A) and C)
G) D) and E)

Question 13

In an average year, the American chemical industry produces more than 9.5 million metric tons of sodium carbonate. Over half of this is used in the manufacture of glass while another third is used in the production of detergents and other chemicals. How many pounds of sodium carbonate are produced annually?

Accepted Answer

A)  2.1 × 10 10 lb
B)  4.3 × 10 9 lb
C)  1.1 × 10 7 lb
D)  2.2 × 10 6 lb
E)  2.1 × 10 4 lbF) B) and D)
G) A) and E)

Question 14

Which of the following is a physical change?

Accepted Answer

A)  Milk turning sour
B)  Battery cables corroding
C)  Sugar turning brown when heated
D)  Liquid water being cooled and forming ice
E)  An egg being hard-boiledF) A) and B)
G) D) and E)

Question 15

The appropriate number of significant figures in the result of 15.234 × 15.208 is

Accepted Answer

A)  2.
B)  3.
C)  4.
D)  5.
E)  6.F) All of the above
G) B) and E)

Question 16

Which of the following is an extensive property of oxygen?

Accepted Answer

A)  Boiling point
B)  Temperature
C)  Average kinetic energy of molecules
D)  Density
E)  MassF) A) and D)
G) A) and E)

Question 17

Which one of the following is a "substance" in the sense of the word as used in your textbook?

Accepted Answer

A)  Air
B)  Tap water
C)  Sea water
D)  Water
E)  ToothpasteF) None of the above
G) A) and B)

Question 18

As chief chemist at Superior Analytical Products (SAP)  you must design an experiment to determine the density of an unknown liquid to three (3)  significant figures. The density is of the order of 1 g/cm3. You have approximately 7 mL of the liquid and only graduated cylinders and balances are available for your use. Which of the following combinations of equipment will allow you to meet but not exceed your goal?

Accepted Answer

A)  Graduated cylinder with ±0.1 mL uncertainty; balance with ±0.1 g uncertainty
B)  Graduated cylinder with ±0.01 mL uncertainty; balance with ±0.1 g uncertainty
C)  Graduated cylinder with ±0.01 mL uncertainty; balance with ±0.01 g uncertainty
D)  Graduated cylinder with ±0.001 mL uncertainty; balance with ±0.001 g uncertainty
E)  Graduated cylinder with ±0.1 mL uncertainty; balance with ±0.001 g uncertaintyF) A) and B)
G) C) and D)

Question 19

Which of the following activities is not a part of good science?

Accepted Answer

A)  Proposing a theory
B)  Developing a hypothesis
C)  Making quantitative observations
D)  Designing experiments
E)  Indulging in speculationF) A) and C)
G) B) and D)

Question 20

An important aim in much chemical work is to use macroscopic measurements in order to gain an understanding of the microscopic world.

Accepted Answer

A) True 
 B)False

Exam 1: Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

Which of the following represents the largest volume?

Correct Answer
verified

The appropriate number of significant figures in the result of 15.234 × 15.208 is

Correct Answer
verified

The average distance from Earth to the Sun is 150 megameters. What is that distance in meters?

Correct Answer
verified

An important aim in much chemical work is to use macroscopic measurements in order to gain an understanding of the microscopic world.

Correct Answer
verified

Correct Answer
verified

Which of the following activities is not a part of good science?

Correct Answer
verified

Which of the following is an extensive property of oxygen?

Correct Answer
verified

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Correct Answer
verified

Express 96,342 m using 2 significant figures.

Correct Answer
verified

A dose of medication was prescribed to be 35 microliters. Which of the following expresses that volume in centiliters?

Correct Answer
verified

Which of the following is a chemical change?

Correct Answer
verified

Select the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm × 9.6114 g ÷ 1.4783 cm² =

Correct Answer
verified

A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its

Correct Answer
verified

Which of the following abbreviations of the given SI base unit is incorrect?

Correct Answer
verified

Which one of the following is a "substance" in the sense of the word as used in your textbook?

Correct Answer
verified

Which of the following is a physical change?

Correct Answer
verified

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas^®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Correct Answer
verified

Given that 1 inch = 2.54 cm, 1 cm³ is equal to

Correct Answer
verified

Correct Answer
verified

Which of the following processes and concepts is not a part of the "scientific method"?

Correct Answer
verified

Exam 1: Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

Which of the following represents the largest volume?

Correct AnswerverifiedShow Answer

The appropriate number of significant figures in the result of 15.234 × 15.208 is

Correct AnswerverifiedShow Answer

The average distance from Earth to the Sun is 150 megameters. What is that distance in meters?

Correct AnswerverifiedShow Answer

An important aim in much chemical work is to use macroscopic measurements in order to gain an understanding of the microscopic world.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following activities is not a part of good science?

Correct AnswerverifiedShow Answer

Which of the following is an extensive property of oxygen?

Correct AnswerverifiedShow Answer

The distance between carbon atoms in ethylene is 134 picometers. Which of the following expresses that distance in meters?

Correct AnswerverifiedShow Answer

Express 96,342 m using 2 significant figures.

Correct AnswerverifiedShow Answer

A dose of medication was prescribed to be 35 microliters. Which of the following expresses that volume in centiliters?

Correct AnswerverifiedShow Answer

Which of the following is a chemical change?

Correct AnswerverifiedShow Answer

Select the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm × 9.6114 g ÷ 1.4783 cm2 =

Correct AnswerverifiedShow Answer

A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its

Correct AnswerverifiedShow Answer

Which of the following abbreviations of the given SI base unit is incorrect?

Correct AnswerverifiedShow Answer

Which one of the following is a "substance" in the sense of the word as used in your textbook?

Correct AnswerverifiedShow Answer

Which of the following is a physical change?

Correct AnswerverifiedShow Answer

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Correct AnswerverifiedShow Answer

Given that 1 inch = 2.54 cm, 1 cm3 is equal to

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following processes and concepts is not a part of the "scientific method"?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Select the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm × 9.6114 g ÷ 1.4783 cm² =

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas^®, boils at 56.1°C. What is the boiling point in degrees Fahrenheit?

Correct Answer
verified

Given that 1 inch = 2.54 cm, 1 cm³ is equal to

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified