Question 1

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) B) and C)
G) C) and D)

Question 2

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)   6F) B) and E)
G) All of the above D

Question 3

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

Accepted Answer

A)   second: s
B)   kilogram: kg
C)   kelvin: K
D)   mole: m
E)   ampere: AF) A) and E)
G) C) and D)

Question 4

The symbol for the S.I. base unit of mass is:

Accepted Answer

A)   mg
B)   g
C)   kg
D)   metric ton
E)   lbF) B) and E)
G) B) and D)

Question 5

As part of an experiment to determine the density of a new plastic developed in her laboratory, Sara Ann Dippity measures the volume of a solid sample. Her four trials yield volumes of 12.37 cm3, 12.41 cm3, 12.39 cm3, and 12.38 cm3. Measurements of other scientists in the lab give an average volume of 12.49 cm3. Which of the following statements represents the best analysis of the data?

Accepted Answer

A)   Sara's results have low precision and high accuracy.
B)   Sara's results have high precision and high accuracy.
C)   Sara's results have greater precision than accuracy.
D)   Sara's results have greater accuracy than precision.
E)   Sara has been using a faulty instrument to measure the volume.F) A) and C)
G) A) and B)

Question 6

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

Accepted Answer

A)   16.4 in3
B)   6.45 in3
C)   0.394 in3
D)   0.155 in3
E)   0.0610 in3F) A) and B)
G) D) and E)

Question 7

When a wooden match burns in air, chemical potential energy is converted to kinetic energy.

Accepted Answer

A) True 
 B)False

Question 8

When applying the scientific method, it is important to avoid any form of hypothesis.

Accepted Answer

A) True 
 B)False

Question 9

Briefly explain the relationship between hypothesis and experiment in the scientific method.

Accepted Answer

A hypothesis should be capable...

Question 10

Select the best statement about chemistry before 1800.

Accepted Answer

A)   Alchemy focused on objective experimentation rather than mystical explanations of processes.
B)   The phlogiston theory laid a valuable theoretical basis for modern chemistry.
C)   Lavoisier's quantitative work on the role of oxygen in combustion was the beginning of modern chemistry.
D)   The interpretation of data by alchemists was not biased by their overall view of life.
E)   Alchemists failed because they did not develop any practical chemical methods.F) B) and C)
G) B) and E)

Question 11

The most significant contribution to modern science made by alchemists was

Accepted Answer

A)   their fundamental work in the transmutation of the elements.
B)   their widespread acceptance of observation and experimentation.
C)   their systematic method of naming substances.
D)   their understanding of the nature of chemical reactions.
E)   their discovery of phlogiston.F) D) and E)
G) B) and C) B

Question 12

During the swing of a frictionless pendulum, what energy form(s)  remain constant?

Accepted Answer

A)   kinetic energy only
B)   potential energy only
C)   both kinetic energy and potential energy
D)   kinetic plus potential energy
E)   None of these forms remains constant.F) All of the above
G) C) and D)

Question 13

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  ±\pm± 0.1 mL uncertainty; balance with  ±\pm± 0.1 g uncertainty
B)   graduated cylinder with  ±\pm± 0.01 mL uncertainty; balance with  ±\pm± 0.1 g uncertainty
C)   graduated cylinder with  ±\pm± 0.01 mL uncertainty; balance with  ±\pm± 0.01 g uncertainty
D)   graduated cylinder with  ±\pm± 0.001 mL uncertainty; balance with  ±\pm± 0.001 g uncertainty
E)   graduated cylinder with  ±\pm± 0.1 mL uncertainty; balance with  ±\pm± 0.001 g uncertainty F) A) and B)
G) None of the above

Question 14

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 D)
G) B) and E)

Question 15

The area of a 15-inch pizza is 176.7 in2. Express this area in square centimeters.

Accepted Answer

A)   1140. cm2
B)   448.8 cm2
C)   96.8 cm2
D)   69.57 cm2
E)   27.39 cm2F) B) and E)
G) All of the above

Question 16

The ripening of fruit, once picked, is an example of physical change.

Accepted Answer

A) True 
 B)False

Question 17

The mass of a sample is 550 milligrams. Which of the following expresses that mass in kilograms?

Accepted Answer

A)   5.5 *108 kg
B)   5.5* 105 kg
C)   5.5 *10-4 kg
D)   5.5 * 10-6 kg
E)   5.5 * 10-1 kgF) B) and C)
G) A) and B)

Question 18

Select the answer that expresses the result of this calculation with the correct number of significant figures.

Accepted Answer

A)   13.3568
B)   13.357
C)   13.36
D)   13.4
E)   13F) A) and B)
G) C) and D)

Question 19

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

Accepted Answer

A)   3.5 *105 cL
B)   3.5 * 104 cL
C)   3.5 cL
D)   3.5 * 10-4 cL
E)   3.5 * 10-3 cLF) D) and E)
G) A) and C)

Question 20

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/cm3
B)   105.2 g/cm2
C)   105.2 g/cm
D)   72.13 g/cm2
E)   72.13 g/cmF) B) and C)
G) None of the above C

Exam 1: Keys to the Study of Chemistry

Which of the following is an extensive property of oxygen?

Correct Answer
verified

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

Correct Answer
verified
D

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

Correct Answer
verified

The symbol for the S.I. base unit of mass is:

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

When a wooden match burns in air, chemical potential energy is converted to kinetic energy.

Correct Answer
verified

When applying the scientific method, it is important to avoid any form of hypothesis.

Correct Answer
verified

Briefly explain the relationship between hypothesis and experiment in the scientific method.

Correct Answer
verified
A hypothesis should be capable...
View Answer

Select the best statement about chemistry before 1800.

Correct Answer
verified

The most significant contribution to modern science made by alchemists was

Correct Answer
verified
B

During the swing of a frictionless pendulum, what energy form(s) remain constant?

Correct Answer
verified

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?

Correct Answer
verified

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

Correct Answer
verified

The area of a 15-inch pizza is 176.7 in². Express this area in square centimeters.

Correct Answer
verified

The ripening of fruit, once picked, is an example of physical change.

Correct Answer
verified

The mass of a sample is 550 milligrams. Which of the following expresses that mass in kilograms?

Correct Answer
verified

Select the answer that expresses the result of this calculation with the correct number of 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

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
C

Exam 1: Keys to the Study of Chemistry

Which of the following is an extensive property of oxygen?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

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

Correct AnswerverifiedShow Answer

The symbol for the S.I. base unit of mass is:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When a wooden match burns in air, chemical potential energy is converted to kinetic energy.

Correct AnswerverifiedShow Answer

When applying the scientific method, it is important to avoid any form of hypothesis.

Correct AnswerverifiedShow Answer

Briefly explain the relationship between hypothesis and experiment in the scientific method.

Correct AnswerverifiedA hypothesis should be capable...View AnswerShow Answer

Select the best statement about chemistry before 1800.

Correct AnswerverifiedShow Answer

The most significant contribution to modern science made by alchemists was

Correct AnswerverifiedB

During the swing of a frictionless pendulum, what energy form(s) remain constant?

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The area of a 15-inch pizza is 176.7 in2. Express this area in square centimeters.

Correct AnswerverifiedShow Answer

The ripening of fruit, once picked, is an example of physical change.

Correct AnswerverifiedShow Answer

The mass of a sample is 550 milligrams. Which of the following expresses that mass in kilograms?

Correct AnswerverifiedShow Answer

Select the answer that expresses the result of this calculation with the correct number of 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

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 AnswerverifiedC

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A hypothesis should be capable...
View Answer

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

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?

Correct Answer
verified

Correct Answer
verified

The area of a 15-inch pizza is 176.7 in². Express this area in square centimeters.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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
C