Question 1

If normal body temperature is 98.6°F then what is this in degrees Celsius?

Accepted Answer

A)   34°C
B)   35.5°C
C)   36.4°C
D)   37.0°C
E)   38.7°CF) B) and D)
G) A) and B)

Question 2

The density of a substance is an intensive property.

Accepted Answer

A) True 
 B)False

Question 3

Give an example of an extensive property.

Accepted Answer

(Answers w...

Question 4

The recommended daily allowance (RDA)  of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium?

Accepted Answer

A)   0.10 g
B)   0.14 g
C)   1.2 g
D)   10. g
E)   14 gF) A) and E)
G) A) and B)

Question 5

The boiling point for liquid nitrogen is 77 K. What is the temperature in degrees Fahrenheit?

Accepted Answer

A)   -127°F
B)   -289°F
C)   -321°F
D)   177°F
E)   662°FF) A) and E)
G) A) and D)

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

How many cubic inches are in 1.00 liter? (1 in = 2.54 cm)

Accepted Answer

A)   61.0 in3
B)   155 in3
C)   394 in3
D)   1.64 × 104 in3
E)   none of themF) A) and B)
G) A) and C)

Question 8

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

Question 9

Which of the following is an example of an observation?

Accepted Answer

A)   Gases expand as their temperature increases because the gas molecules are moving more rapidly.
B)   Paraffin wax begins to melt at 57°C.
C)   Three samples of wax are heated to 75°C.
D)   The force acting on an object is equal to its mass times its acceleration.
E)   Will all waxes melt at the same temperature?F) A) and C)
G) A) and E)

Question 10

Give examples of three physical properties.

Accepted Answer

(Answers will vary.)...

Question 11

Walking fast can consume 5.0 kcal per minute. How many hours of exercise are required to consume 450 kcal, the energy in a large candy bar?

Accepted Answer

A)   7.5 hr
B)   1.25 hr
C)   1.75 hr
D)   1.5 hr
E)   1 hrF) All of the above
G) B) and C)

Question 12

There are 58 counties in California and about 660,000 people in each county. How many million people live in California?

Accepted Answer

A)   383 million people
B)   38 million people
C)   40 million people
D)   58 million people
E)   11 million peopleF) D) and E)
G) A) and B)

Question 13

What is the equation for the conversion of Celsius temperatures to Kelvin temperatures?

Accepted Answer

The answer of What is the equation for the conversion...

Question 14

Radio waves travel at the speed of light, which is 3.00 × 108 m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 108 km from Earth?

Accepted Answer

A)   4.4 × 10-2 min
B)   1.6 × 105 min
C)   4.0 × 1015 min
D)   44 min
E)   2.6 minF) A) and D)
G) All of the above

Question 15

You prepare 1000. mL of tea and transfer it to a 1.00 quart pitcher for storage. Which of the following statements is true? (1 L = 1.0567 qt)

Accepted Answer

A)   The pitcher will be filled to 100% of its capacity with no tea spilled.
B)   The pitcher will be filled to about 95% of its capacity.
C)   The pitcher will be filled to about 50% of its capacity.
D)   The pitcher will be completely filled and a small amount of tea will overflow.
E)   The pitcher will be completely filled and most of the tea will overflow.F) A) and E)
G) A) and D)

Question 16

Acetic acid boils at 244.2°F. What is its boiling point in degrees Celsius?

Accepted Answer

A)   382.0°C
B)   167.7°C
C)   153.4°C
D)   117.9°C
E)   103.7°CF) B) and E)
G) C) and D)

Question 17

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) B) and E)
G) A) and D)

Question 18

Given that 1 inch = 2.54 cm, 1.00 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 in3.F) B) and D)
G) All of the above

Question 19

Which of the following speeds is the greatest? (1 mi = 1609 m)

Accepted Answer

A)   40 mi/h
B)   2.0 × 105 mm/min
C)   40 km/h
D)   0.74 km/min
E)   400 m/minF) B) and C)
G) A) and C)

Question 20

If the temperature is 38.0°F then what is the temperature in kelvins?

Accepted Answer

A)   3.33 K
B)   100.4 K
C)   276.5 K
D)   311.15 K
E)   235.15 KF) A) and D)
G) C) and D)

Exam 1: Chemistry: the Central Science

The recommended daily allowance (RDA) of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium?

Correct AnswerverifiedShow Answer

Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to

Correct AnswerverifiedShow Answer

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

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

The boiling point for liquid nitrogen is 77 K. What is the temperature in degrees Fahrenheit?

Correct AnswerverifiedShow Answer

The density of a substance is an intensive property.

Correct AnswerverifiedShow Answer

How many cubic inches are in 1.00 liter? (1 in = 2.54 cm)

Correct AnswerverifiedShow Answer

Radio waves travel at the speed of light, which is 3.00 × 108 m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 108 km from Earth?

Correct AnswerverifiedShow Answer

If the temperature is 38.0°F then what is the temperature in kelvins?

Correct AnswerverifiedShow Answer

Which of the following speeds is the greatest? (1 mi = 1609 m)

Correct AnswerverifiedShow Answer

If normal body temperature is 98.6°F then what is this in degrees Celsius?

Correct AnswerverifiedShow Answer

Give examples of three physical properties.

Correct Answerverified(Answers will vary.)...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Acetic acid boils at 244.2°F. What is its boiling point in degrees Celsius?

Correct AnswerverifiedShow Answer

Walking fast can consume 5.0 kcal per minute. How many hours of exercise are required to consume 450 kcal, the energy in a large candy bar?

Correct AnswerverifiedShow Answer

Which of the following is an example of an observation?

Correct AnswerverifiedShow Answer

You prepare 1000. mL of tea and transfer it to a 1.00 quart pitcher for storage. Which of the following statements is true? (1 L = 1.0567 qt)

Correct AnswerverifiedShow Answer

There are 58 counties in California and about 660,000 people in each county. How many million people live in California?

Correct AnswerverifiedShow Answer

What is the equation for the conversion of Celsius temperatures to Kelvin temperatures?

Correct AnswerverifiedShow Answer

Give an example of an extensive property.

Correct Answerverified(Answers w...View AnswerShow Answer

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Given that 1 inch = 2.54 cm, 1.00 cm³ is equal to

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Radio waves travel at the speed of light, which is 3.00 × 10⁸ m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 × 10⁸ km from Earth?

Correct Answer
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(Answers will vary.)...
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