Question 1

A geology student found an irregularly shaped rock,with a mass of 28.63 grams,and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder,what is the density of the rock,in g/mL?

Accepted Answer

A)  4.46 g/mL
B)  4460 g/mL
C)  2.20 g/mL
D)  0.455 g/mL
E)  44.6 g/mLF) All of the above
G) D) and E)

Question 2

How many inches are in 382.5 cm? (1 in = 2.54 cm) ?

Accepted Answer

A)  150.6 in
B)  6.641 × 10-3 in
C)  151 in
D)  971.6 in
E)  972 inF) B) and C)
G) D) and E)

Question 3

The dark meat of a 20-pound turkey requires an internal temperature of 180°F to be fully cooked.What minimum temperature reading should be displayed on a food thermometer that only measures in degrees Celsius?

Accepted Answer

A)  82°C
B)  354°C
C)  261°C
D)  -192°C
E)  -310°CF) C) and D)
G) B) and C)

Question 4

How many significant figures does the sum 8.5201 + 1.93 contain?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) None of the above
G) C) and D)

Question 5

Discuss the benefits of using the metric system for measurements.

Accepted Answer

All measurements in the metric system ar...

Question 6

Which of the following does not have a uniform composition throughout?

Accepted Answer

A)  Element
B)  Compound
C)  Homogeneous mixture
D)  Heterogeneous mixture
E)  SolventF) A) and E)
G) B) and C)

Question 7

A(n)__________ is a combination of two or more substances in which the substances retain their distinct identities.

Accepted Answer

The answer of A(n)__________ is a combination of two or...

Question 8

What is the length of the box,using the proper number of significant figures and units?

Accepted Answer

A)  5.5 cm
B)  5 cm
C)  6 cm
D)  5.67 cm
E)  5.6 cmF) B) and D)
G) C) and D)

Question 9

Boiling point and melting point are extensive properties.

Accepted Answer

A) True 
 B)False

Question 10

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

Question 11

The density of mercury,the only metal to exist as a liquid at room temperature,is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

Accepted Answer

A)  849 lb/in3
B)  491 lb/in3
C)  376 lb/in3
D)  0.491 lb/in3
E)  1.83 × 10-3 lb/in3F) A) and C)
G) A) and D)

Question 12

What is the volume in milliliters of a 32.0 fl oz can of juice? (1 fl oz = 29.6 mL)

Accepted Answer

A)  1.08 mL
B)  947 mL
C)  0.925 mL
D)  0.95 mL
E)  1.1 mLF) A) and D)
G) A) and E)

Question 13

When applying the scientific method,a model or theory should be based on experimental data.

Accepted Answer

A) True 
 B)False

Question 14

Explain the rule for significant figures for multiplication and division.

Accepted Answer

The number of significant figu...

Question 15

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) None of the above
G) A) and D)

Question 16

_________,_________,and ________ are the three states of matter.

Accepted Answer

liquid,sol...

Question 17

A(n)__________ is a substance that cannot be separated into simpler substances by chemical means.

Accepted Answer

The answer of A(n)__________ is a substance that cannot be...

Question 18

How many hertz is 600.11 MHz?

Accepted Answer

A)  6.0011 × 10-4 Hz
B)  60.011 Hz
C)  6.0011 × 106 Hz
D)  6.0011 × 10-2 Hz
E)  6.0011 × 108 HzF) A) and E)
G) B) and E)

Question 19

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) A) and E)
G) A) and C)

Question 20

Explain the difference between quantitative measurements and qualitative measurements.

Accepted Answer

A quantitative measurement is ...

Exam 1: Chemistry: the Central Science

A(n)__________ is a combination of two or more substances in which the substances retain their distinct identities.

Correct AnswerverifiedShow Answer

When applying the scientific method,a model or theory should be based on experimental data.

Correct AnswerverifiedShow Answer

A(n)__________ is a substance that cannot be separated into simpler substances by chemical means.

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

Discuss the benefits of using the metric system for measurements.

Correct AnswerverifiedAll measurements in the metric system ar...View AnswerShow Answer

A geology student found an irregularly shaped rock,with a mass of 28.63 grams,and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder,what is the density of the rock,in g/mL?

Correct AnswerverifiedShow Answer

Explain the difference between quantitative measurements and qualitative measurements.

Correct AnswerverifiedA quantitative measurement is ...View AnswerShow 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

How many significant figures does the sum 8.5201 + 1.93 contain?

Correct AnswerverifiedShow Answer

How many inches are in 382.5 cm? (1 in = 2.54 cm) ?

Correct AnswerverifiedShow Answer

How many hertz is 600.11 MHz?

Correct AnswerverifiedShow Answer

Which of the following does not have a uniform composition throughout?

Correct AnswerverifiedShow Answer

The dark meat of a 20-pound turkey requires an internal temperature of 180°F to be fully cooked.What minimum temperature reading should be displayed on a food thermometer that only measures in degrees Celsius?

Correct AnswerverifiedShow Answer

Boiling point and melting point are extensive properties.

Correct AnswerverifiedShow Answer

What is the length of the box,using the proper number of significant figures and units?

Correct AnswerverifiedShow Answer

The density of mercury,the only metal to exist as a liquid at room temperature,is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

Correct AnswerverifiedShow Answer

What is the volume in milliliters of a 32.0 fl oz can of juice? (1 fl oz = 29.6 mL)

Correct AnswerverifiedShow Answer

Explain the rule for significant figures for multiplication and division.

Correct AnswerverifiedThe number of significant figu...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

_________,_________,and ________ are the three states of matter.

Correct Answerverifiedliquid,sol...View AnswerShow Answer

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All measurements in the metric system ar...
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Correct Answer
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A quantitative measurement is ...
View 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 Answer
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Correct Answer
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The number of significant figu...
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_____,_,and ____ are the three states of matter.

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liquid,sol...
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