Package Title: Raymond Test Bank
Course Title: Raymond, 4e
Chapter Number: 1

Question type: Multiple Choice

1) If you have a toothache and the dentist taps your tooth to check for sensitivity, what part of the scientific method is being used?

a) experiment
b) hypothesis
c) theory
d) law

Answer: a

Difficulty: Easy
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

2) A scientist, Dr. Sigma, states that a chemical taken internally once a day will prevent the common cold. However, no other scientist is able to duplicate the results. The statement by Dr. Sigma is ___.

a) a law
b) a hypothesis
c) a theory
d) not valid

Answer: b

Difficulty: Easy
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

3) Which of the following explanations is a testable hypothesis?

a) A sugar crystal is forming faster because it is grown in cold environment.
b) A plant is dying because of the direction of spinning of the earth.
c) A bird lays more eggs because of the intensity of thunderstorms.
d) A burp increases the weight of a baby.

Answer: a

Difficulty: Easy
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

4) All matter is composed of tiny, indivisible particles called atoms. All atoms are composed of protons, neutrons, and electrons. These statements are an example of a scientific ___.

a) law
b) theory
c) hypothesis
d) experiment

Answer: b

Difficulty: Medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

5) Scientific laws differ from scientific theories in that

a) laws explain observations and theories describe observations.
b) laws describe observations and theories explain observations.
c) theories eventually become laws.
d) No difference exists. Laws and theories have the same meaning.

Answer: a

Difficulty: Medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

6) While attempting to start your car, when you turn the key, there is no response. You suspect that the battery is dead. To determine this, you turn on the light switch. Your suspicion about the battery is an example of a ___, and your attempt to turn on the headlight is an example of a ___.

a) theory, law
b) hypothesis, experiment
c) experiment, hypothesis
d) hypothesis, theory

Answer: b

Difficulty: Medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

7) Water flowing over a dam is an example of

a) potential energy.
b) chemical energy.
c) electrical energy.
d) kinetic energy.

Answer: d

Difficulty: Easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

8) The conversion of a solid directly into a gas is called ___.

a) vaporization
b) deposition
c) sublimation
d) melting

Answer: c

Difficulty: Easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

9) Liquids have ___ shape and ___ volume.

a) fixed/variable
b) fixed/fixed
c) variable/fixed
d) variable/variable

Answer: c

Difficulty: Easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

10) The energy available by virtue of a rock sitting at the top of a cliff is

a) chemical energy.
b) potential energy.
c) thermal energy.
d) kinetic energy.

Answer: b

Difficulty: Easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

11) Which of the following is an example of a physical change?

a) a piece of paper cut into small pieces
b) burning of paper
c) butter becoming rancid
d) baking a cookie

Answer: a

Difficulty: Easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

12) Which of the following is a chemical property?

a) color
b) flammability
c) odor
d) hardness

Answer: b

Difficulty: Medium
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

13) Which of the following is a chemical change?

a) evaporation of water
b) melting of copper
c) tearing paper
d) frying an egg

Answer: d

Difficulty: Medium LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Learning Objective 1:
Section Reference 1: 1.2

14) During melting of ice

a) the temperature remains constant even as more heat is added until all of the ice has melted
b) the temperature increases until all the ice has melted
c) the temperature decreases until the ice has melted
d) the energy that goes into converting ice to liquid water is called heat of vaporization

Answer: a

Difficulty: Hard
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

15) Which of the following is a physical change?

a) melting of ice
b) burning oxygen in air
c) rusting of iron
d) baking cookies

Answer: a

Difficulty: Hard
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

16) Which is a unit of measure of mass?

a) liter
b) ºC
c) kilogram
d) Joule

Answer: c

Difficulty: Easy
Learning Objective 1: LO 1.3 Identify metric, English, and SI units.
Section Reference 1: 1.3

17) The correct conversion of 1 L is ___.

a) 1 m3
b) 1000 m3
c) 0.001 m3
d) 100 m3

Answer: c

Difficulty: Hard
Learning Objective 1: LO 1.3 Identify metric, English, and SI units.
Section Reference 1: 1.3

18) The number 390000, expressed correctly in scientific notation, is ___.

a) 3.9 x 10-6
b) 3.9 x 105
c) 3.9
d) 3.9 x 10-5

Answer: b

Difficulty: Easy
Learning Objective 1: LO 1.4 Express values using scientific notation and metric prefixes.
Section Reference 1: 1.4

19) A patient’s temperature is taken three times by two nurses. The results of three successive temperatures by each nurse are

Nurse A			Nurse B
98 F			90 F
99 F			100 F	
97 F			96 F

The patient’s actual temperature is 101 F. Which of the following statements is true?

a) Nurse A’s results are more precise than those of nurse B.
b) Nurse B’s results are more accurate than those of Nurse A.
c) Both nurses have precise results.
d) Nurse B’s results are both accurate and precise.

Answer: a

Difficulty: Medium
Learning Objective 1: LO 1.4 Express values using scientific notation and metric prefixes.
Section Reference 1: 1.4

20) 2.32 g is the same as ___.

a) 232 kg
b) 23.2 cg
c) 2320 mg
d) 0.0232 dg

Answer: c

Difficulty: Medium
Learning Objective 1: LO 1.4 Express values using scientific notation and metric prefixes.
Section Reference 1: 1.4

21) Which of the following numbers contains the designated CORRECT number of significant figures?

a) 30.1 C	2 significant figures
b) 3.6 x 102m	3 significant figures
c) 0.00450 m	3 significant figures
d) 27.051 mL	4 significant figures

Answer: c

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

22) Perform the following calculation: 39.5 x 22.0 x 0.0067. Round your answer to the correct number of significant digits.

a) 5.8223
b) 5.822
c) 5.82
d) 5.8

Answer: d

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

23) The number 84.3759 rounded to the nearest 1 significant figure is ___.

a) 90
b) 8
c) 80
d) 84

Answer: c

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

24) When 15.5 + 0.125 + 2.55 are added, assuming each of the numbers below is measured, the answer with the correct number of significant figures is ___.

a) 18.175
b) 18.2
c) 18.17
d) 18

Answer: b

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

25) A mercury thermometer is used to take four temperatures of a solution. The temperatures are 44.8 ºC, 44.9 ºC, 45.0 ºC, and 45.1 ºC. An alcohol thermometer was also used and measured 44.9 ºC, 45.3 ºC, 45.4 ºC, and 45.9 ºC. The solution is correctly determined to be 45.0 ºC by other means. Which conclusion is correct?

a) The mercury thermometer is the more precise.
b) The alcohol thermometer is the more precise.
c) There is no difference between the thermometers.
d) There is no way to determine precision with these temperatures.

Answer: a

Difficulty: medium
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

26) Each of the numbers below is measured. Solve the calculation and give the correct number of significant figures.
(2.34 x 104 ) x (1.38 x 107)

a) 3.2 x 1011
b) 3.23 x 1011
c) 3.229 x 1011
d) 3.23 x 1012

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

27) Each of the numbers below is measured. Solve the calculation and give the correct number of significant figures.
3.52 x 10-16 – 8.16 x 10-17

a) 2.704 x 10-15
b) 4.64 x 1016
c) 2.7 x 10-16
d) 27.04 x 1014

Answer: c

Difficulty: hard
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

28) Each of the numbers below is a measured quantity. Solve the calculation and give the correct number of significant figures.
		 (17.8 x 0.1150) / 6.7

a) 0.31
b) 0.3
c) 0.306
d) 0.3055

Answer: a

Difficulty: hard
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

29) A patient weighs 205.0 pounds, but the weight is to be recorded in kilograms. What is the patient’s weight in kilograms using whole numbers? (Given: 1 kg = 2.205 lbs.)

a) 451.4 kg
b) 205.0 kg
c) 100.4 kg
d) 92.97 kg

Answer: d

Difficulty: medium
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

30) The density of ethanol at 20 C is 0.791 g/mL. How many milliliters of ethanol correspond to 12.0 g of ethanol at 20 C?

a) 9.49 mL
b) 15.2 mL
c) 0.791 ml
d) 30.6 mL

Answer: b

Difficulty: Hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

31) The instructions for a cough syrup are to give 2 teaspoons every 8 hours. The cough syrup is supplied in 150-mL bottles. How many bottles must be purchased to treat 3 children for 5 days? (Given 1 tsp = 5 mL.)

a) 1 bottle
b) 2 bottles
c) 3 bottles
d) 4 bottles

Answer: c

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

32) A kitten’s normal body temperature is 102ºF. Express this temperature in ºC.

a) 5.7 ºC
b) 38.9 ºC
c) 56.7 ºC
d) 184 ºC

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

33) A 33.0 g of aluminum is heated on a stove. The temperature of the aluminum increases from 25 C to 120 C. How much heat energy was absorbed? (The specific heat of aluminum is 0.0215 cal/gC.)

a) 67 cal
b) 0.0075 cal
c) 0.61 cal
d) 13 cal

Answer: a

Difficulty: medium
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7

34) At 20 C, chloroform (CHCl3) has a density of 1.489 g/mL. What is the mass of 7.52 mL of chloroform at 20 C?

a) 0.198 g
b) 13.4 g
c) 5.05 g
d) 11.2 g

Answer: d

Difficulty: medium
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7

35) How much will the temperature change when 3.0 g of tooth enamel (specific heat = 0.18 cal/g C) absorbs 0.80 cal of heat energy?

a) 2.4C
b) 3.7C
c) 1.5C
d) 8.6C

Answer: c

Difficulty: medium
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7

36) What is the number of 1-1/2 teaspoon doses of a liquid medication in a 250 mL bottle? (Given 1 tsp = 5 mL.)

a) 33 doses
b) 125 doses
c) 167 doses
d) 250 doses

Answer: a

Difficulty: hard
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7 

37) At 20C, the density of ethyl alcohol is 0.789 g/mL, and that of water is 1.00 g/mL. Calculate the specific gravity of ethyl alcohol at 20 C.

a) 0.651
b) 0.789
c) 1.45
d) 6.51

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7 

38) A weather forecaster predicts that the temperature for the day will reach 88 F. What is the Celsius value for the predicted temperature?

a) 88C
b) 273C
c) 31C
d) 304C

Answer: c

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

39) The temperature of a patient is found to be 38.5 C. What is this temperature in F?

a) 96F
b) 101F
c) 69F
d) 107F

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

40) A patient having a serious reaction caused by a peanut allergy has a doctor’s order to have 0.240 g of epinephrine. The liquid on hand contains 250 mg/5mL bottle. How many milliliters of the liquid are required?

a) 4.8 mL
b) 0.0048 mL
c) 12 mL
d) 1.2 mL

Answer: a

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

41) The normal dosage for azinthromycin, an antibiotic, is 3.3 mg/kg. What is the proper dose for a 150 lb patient? (Given: 1kg = 2.205 lbs.)

a) 100 mg
b) 224 mg
c) 300 mg
d) 495 mg

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

42) What is the weight of Amphotec®, an antibiotic preparation for aspergillus infection, necessary for a 135 pound patient at the rate of 3.5 mg/kg per dose? (Given:  1kg = 2.205 lbs.)

a) 7.7 mg
b) 61.4 mg
c) 214 mg
d) 2228 mg

Answer: c

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

43) When aspirin is heated, it melts at 275 F. Convert this temperature into kelvins.

a) 135 K
b) 408 K
c) -138 K
d) 375 K

Answer: b

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

44) The density of table salt is 2.16 g/mL. What is the volume in milliliters occupied by 356.0 g of table salt?

a) 165 mL
b) 769 mL
c) 0.00607 mL
d) 358 mL

Answer: a

Difficulty: medium
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7

45) Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0 mg/kg. What is the proper dose for a 175 lb patient? (Given: 1kg = 2.205 lbs.)

a) 79 mg
b) 175 mg
c) 385 mg
d) 875 mg

Answer: c

Difficulty: medium
Learning Objective 1: LO 1.8 Recognize the difference between general chemistry, organic chemistry, and biochemistry.
Section Reference 1: 1.8

46) The density of gasoline is 0.73 g/mL at 20 C. Jenny’s car requires 16 gallons of gasoline to fill her car’s gas tank. How much mass (in pounds) of gasoline does she need to fill her tank? (Given: 1 qt= 0.946 L, 1 gallon = 4 qt, 1 Ib = 454 g, 1 mL= 1 x 10-3 L.)

a) 190 Ib
b) 340 Ib
c) 140 Ib
d) 210 Ib

Answer: a

Difficulty: hard
Learning Objective 1: LO 1.8 Recognize the difference between general chemistry, organic chemistry, and biochemistry.
Section Reference 1: 1.8

Question type: True/False

47) A hypothesis is a statement that proposes an explanation of a set of observations.

Answer: true

Difficulty: easy
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

48) The higher the temperature of something, the greater the kinetic energy of the particles from which it is made.

Answer: true

Difficulty: easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

49) Rusting of iron is a physical change.

Answer: false

Difficulty: medium
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

50) A container holding a mixture of ice and water is placed in a 115 C oven. The ice-water mixture rises in temperature until all the ice has melted away.

Answer: false

Difficulty: hard
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

51) 1 mg is larger than 1 dg.

Answer: false

Difficulty: medium
Learning Objective 1: LO 1.4 Express values using scientific notation and metric prefixes.
Section Reference 1: 1.4

52) 886.0 has four significant figures.

Answer: true

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

53) Accuracy tells us how close a measurement is to the true value.

Answer: true

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

54) The zeros in 1700.85 cal are not significant.

Answer: false

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

55) The zeros in 0.00958 cm are not significant.

Answer: true

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

Question type: text-entry

56) A statement that explains observable phenomenon and has been tested by experimentation can be classified as a scientific ___.

Answer: theory

Difficulty: easy
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

57) A scientific ___ describes observable phenomenon.

Answer: law

Difficulty: medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

58) The energy required to melt a solid is called the ___.

Answer: heat of fusion

Difficulty: easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

59) When a steak is cooked on a grill the meat undergoes a ___ change.

Answer: chemical

Difficulty: medium
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

60) A degree in the Kelvin scale is the same size as a ___ degree.

Answer: celsius

Difficulty: easy
Learning Objective 1: LO 1.3 Identify metric, English, and SI units.
Section Reference 1: 1.3

61) The value 0.000121 cm has ___ significant figures.

Answer: 3

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

62) The value 1.000 kg has ___ significant figures.

Answer: 4

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

63) The value 0.80010 cm has ___ significant figures.

Answer: 5

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

64) A series of measurements that are within +/- 0.001 cm of each other would be described as being very ___.

Answer: precise

Difficulty: easy
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

65) 0.4 meters is equal to ___ centimeters.

Answer: 40

Difficulty: easy
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

66) 5.000 pounds is ___ grams. (Given: 1 kg = 2.205 lbs.)

Answer: 2268

Difficulty: medium
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

Question type: Matching

Show all necessary calculations. Round answers to the allowed significant figures.

67) Match the following as a theory or law:

a) water flows downhill

Answer: law

b) all matter is composed of tiny particles called atoms

Answer: theory

c) when a gas is heated it expands

Answer: law

d) atoms are composed of protons, neutrons, and electrons

Answer: theory

e) a rock released above the surface of the earth will fall to the earth

Answer: law

Difficulty: medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

Question type: short answer/essay

68) Write the following numbers in Scientific Notation.

a) 34.56
b) 10700
c) 0.000890
d) 5600.1

Answer: a) 3.456 x 101
b) 1.07 x 104
c) 8.90 x 10-4
d) 5.6001 x 103

Difficulty: easy
Learning Objective 1: LO 1.4 Express values using scientific notation and metric prefixes.
Section Reference 1: 1.4

69) Determine the number of significant figures in each value below.

a) 34.56
b) 10700
c) 0.000890
d) 5600.1

Answer: a) 4
b) 3
c) 3
d) 5

Difficulty: medium
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

70) Calculate the following and round to the correct number of significant figures.

a) (12.00  x 1.5) ÷  .00625
b) 3.61 x 103  ÷  5.4008 x 10-4

Answer: a) 2900
b) 6.68 x 106

Difficulty: hard
Learning Objective 1: LO 1.5 Describe the difference between the terms accurate and precise and use significant figures when doing calculations involving measured quantities.
Section Reference 1: 1.5

71) Ethanol has a density of 0.78 g/mL. What volume would 500 grams of ethanol occupy?

Answer: 640 mL

Difficulty: easy
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7 

72) A 1-dollar bill is approximately 6.00 inches long. What is the length of a dollar bill in millimeters? (1 inch = 2.54 cm)

Answer: 152 mm

Difficulty: medium
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

73) In a given class, the average male student weighs 185 lbs and the average female student weighs 125 lbs. What is the difference between the weight of the average male and average female in kilograms? (2.205 lb = 1 kg)

Answer: 27 kg

Difficulty: medium
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

74) Convert 5.67 x 104 millimeters into centimeters.

Answer: 5.67 x 103 cm

Difficulty: medium
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

75) Iron has a density of 7.86 g/cm3. What is the mass of 12 cm3 of iron?

Answer: 94 g

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

76) You stop to purchase gasoline. The price at the pump is 85.0 cents/liter. What is this price in dollars/gallon? (1 gal = 3.785 l)

Answer: $3.22/gal

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

77) A child with a mass of 35.4 kg has a fever. The proper dosage of acetominophen is 15.0 mg/kg of body weight. How many teaspoons of syrup will you give the child if the syrup contains 160 mg of acetominophen/teaspoon?

Answer: 3.3 tsp

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

78) The high temperature on a given day is 76 ºF. Convert this to Celsius.

Answer: 24 ºC

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

79) The low temperature on a winter night might be as low as -28 ºC. Convert this temperature to Fahrenheit and Kelvin.

Answer: -18 ºF and 2.5 x 102 K

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

80) A doctor orders tetracycline, 240 mg. The bottle of tetracycline syrup indicates that the concentration is 120 mg per 5 mL. How many milliliters of syrup do you give the patient?

Answer: 10 mL

Difficulty: hard
Learning Objective 1: LO 1.6 Identify conversion factors and use them to convert from one unit to another.
Section Reference 1: 1.6

81) The density of mercury is 13.6 g/ml and the density of gold is 19.3 g/mL. Which occupies a greater volume, 8.3 g of mercury or 8.3 g of gold?

Answer: Mercury

Difficulty: hard
Learning Objective 1: LO 1.7 Explain the terms density, specific gravity, and specific heat.
Section Reference 1: 1.7

82) You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8 C. What is this temperature in F?

Answer: 105 C

Difficulty: medium
Learning Objective 1: LO 1.8 Recognize the difference between general chemistry, organic chemistry, and biochemistry.
Section Reference 1: 1.8

83) Distinguish between the terms scientific theory and scientific law and give an example of each.

Answer: Scientific theories explain phenomenon and scientific laws describe phenomenon.

Difficulty: medium
Learning Objective 1: LO 1.1 Explain the terms law, hypothesis, experiment, and theory.
Section Reference 1: 1.1

84) Distinguish between the terms matter and energy.

Answer: Matter is anything that has mass and volume while energy is the ability to do work or transfer heat.

Difficulty: easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

85) Distinguish between the terms potential energy and kinetic energy.

Answer: Potential energy is stored energy and kinetic energy is energy due to motion.

Difficulty: easy
Learning Objective 1: LO 1.2 Describe the three states of matter and the two forms of energy, and give examples of physical properties and physical change.
Section Reference 1: 1.2

86) Describe an analogy between the molecules in the three states of matter and students found in a lecture hall, in a laboratory, and moving between classes on campus.

Answer: Molecules in a solid have fixed positions like students in a lecture hall. Molecules in a liquid have confined movement like students in a laboratory. Molecules in a gas move freely like students on campus.