Question 1

1 barrel of oil contains 42.0 gallons. How many liters is this (1L = 1.06 qt)

Accepted Answer

A)  9.9 L 
B)  11 L 
C)  142 L 
D)  158 L 
E)  178 L 
A)  9.9 L 
B)  11 L 
C)  142 L 
D)  158 L 
E)  178 L

Question 2

Ice cream is a pure substance.

Accepted Answer

A) True 
 B)False

Question 3

A piece of metal with a mass of 611 g is placed into a graduated cylinder that contains 25.1 mL of water, raising the water level to 56.7 mL. What is the density of the metal

Accepted Answer

A)  2.70 g/cm3 
B)  7.13 g/cm3 
C)  8.96 g/cm3 
D)  10.5 g/cm3 
E)  19.3 g/cm3 
A)  2.70 g/cm3 
B)  7.13 g/cm3 
C)  8.96 g/cm3 
D)  10.5 g/cm3 
E)  19.3 g/cm3

Question 4

Which of the following is true of a mixture

Accepted Answer

A) A mixture is a combination of two or more substances in which the substances retain their distinct identities. 
B)  A mixture is a substance that cannot be separated into simpler substances by chemical means. 
C)  A mixture is a substance composed of atoms of two or more elements 
D)  A mixture must be homogeneous 
E)  A mixture must be heterogeneous 
A) A mixture is a combination of two or more substances in which the substances retain their distinct identities. 
B)  A mixture is a substance that cannot be separated into simpler substances by chemical means. 
C)  A mixture is a substance composed of atoms of two or more elements 
D)  A mixture must be homogeneous 
E)  A mixture must be heterogeneous

Question 5

Antifreeze boiling out of a radiator is a physical change.

Accepted Answer

A) True 
 B)False

Question 6

Give the correct number of significant figures and units to the problem below. 8.22 m2 / 9.11 m =

Accepted Answer

A)  0.902 m2 
B)  0.902 m3 
C)  0.902 m 
D)  0.902 
E)  0.90 m2 
A)  0.902 m2 
B)  0.902 m3 
C)  0.902 m 
D)  0.902 
E)  0.90 m2

Question 7

Liquid nitrogen boils at -195.8$\circ$C. Express the boiling point of liquid nitrogen in kelvin.

Accepted Answer

A)  -469.0 K 
B)  -77.4 K 
C)  all temperatures are 0 K on the Kelvin scale 
D)  77.4 K 
E)  469.0 K 
A)  -469.0 K 
B)  -77.4 K 
C)  all temperatures are 0 K on the Kelvin scale 
D)  77.4 K 
E)  469.0 K

Question 8

All of the following are properties of tin. Which one is a chemical property of tin

Accepted Answer

A)  Tin can be hammered into a thin sheet. 
B)  At -40$\circ$C a sheet of tin crumbles to a gray powder. 
C)  Tin melts at 231.9$\circ$C. 
D)  When a bar of tin is bent, it emits an audible "cry". 
E)  Tin erodes when added to hydrochloric acid, and a clear gas forms. 
A)  Tin can be hammered into a thin sheet. 
B)  At -40$\circ$C a sheet of tin crumbles to a gray powder. 
C)  Tin melts at 231.9$\circ$C. 
D)  When a bar of tin is bent, it emits an audible "cry". 
E)  Tin erodes when added to hydrochloric acid, and a clear gas forms.

Question 9

Air is a pure substance.

Accepted Answer

A) True 
 B)False

Question 10

Give the correct number of significant figures and units to the problem below. 5.67 m/ 2.04 m2 =

Accepted Answer

A)  2.78 m3 
B)  2.78 m2 
C)  2.78 m 
D)  2.78 
E)  2.78 m-1 
A)  2.78 m3 
B)  2.78 m2 
C)  2.78 m 
D)  2.78 
E)  2.78 m-1

Question 11

The density of lead is 11.4 g/cm3. Express this density in pounds per cubic foot.

Accepted Answer

A)  711 lbs/ft3 
B)  721 lbs/ft3 
C)  731 lbs/ft3 
D)  741 lbs/ft3 
E)  None of the above 
A)  711 lbs/ft3 
B)  721 lbs/ft3 
C)  731 lbs/ft3 
D)  741 lbs/ft3 
E)  None of the above

Question 12

An automobile engine has a piston displacement of 1,600 cm3. Express this volume in liters.

Accepted Answer

A)  0.16 L 
B)  16 L 
C)  1.6 L 
D)  160 L 
E)  None of the above 
A)  0.16 L 
B)  16 L 
C)  1.6 L 
D)  160 L 
E)  None of the above

Question 13

Milk is a pure substance.

Accepted Answer

A) True 
 B)False

Question 14

Convert 4.89 mm to µm.

Accepted Answer

A)  4.89 x 10-6 µm 
B)  4.89 x 10-3 µm 
C)  4.89 x 103 µm 
D)  4.89 x 106 µm 
E)  4.89 x 109 µm 
A)  4.89 x 10-6 µm 
B)  4.89 x 10-3 µm 
C)  4.89 x 103 µm 
D)  4.89 x 106 µm 
E)  4.89 x 109 µm

Question 15

Convert 4.5 x 104 to decimal format.

Accepted Answer

A)  45,000 
B)  4,500 
C)  0.00045 
D)  0.0045 
E)  0.000450 
A)  45,000 
B)  4,500 
C)  0.00045 
D)  0.0045 
E)  0.000450

Question 16

Give the correct number of significant figures to the problem below.6.2 x 10-13 x 5.68 x 108 =

Accepted Answer

A)  3.5 x 10-13 
B)  3.5 x 10-5 
C)  3.5 x 10-104 
D)  3.5 x 10-4 
E)  3.5 x 10-21 
A)  3.5 x 10-13 
B)  3.5 x 10-5 
C)  3.5 x 10-104 
D)  3.5 x 10-4 
E)  3.5 x 10-21

Question 17

What will be the cost of gasoline for a 3,700-mile trip in a car that gets 23 miles per gallon if the average price of gas is $3.90 per gallon

Accepted Answer

A)  $690 
B)  $670 
C)  $650 
D)  $630 
E)  None of the above 
A)  $690 
B)  $670 
C)  $650 
D)  $630 
E)  None of the above

Question 18

A special flask used in the determination of densities, called a pycnometer, has a mass of 16.3179 g when empty, and it has a mass of 48.0250 g when filled with water at 20.0$\circ$C. When this same pycnometer is filled with ethyl alcohol at 20.0$\circ$C, it is found to have a mass of 41.3934 g. Find the density of ethyl alcohol at 20.0$\circ$C. (Given: at 20.0$\circ$C, the density of water is 0.9982 g/mL)

Accepted Answer

A)  0.7894 g/mL 
B)  0.7923 g/mL 
C)  0.7908 g/mL 
D)  1.303 g/mL 
E)  0.7674 g/mL 
A)  0.7894 g/mL 
B)  0.7923 g/mL 
C)  0.7908 g/mL 
D)  1.303 g/mL 
E)  0.7674 g/mL

Question 19

Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds * 60 yds to a depth of 1.0 mm (1 inch = 2.54 cm; 1 lb = 453.6 g)

Accepted Answer

A)  6.4 * 103 lb 
B)  6.4 * 104 lb 
C)  1.0 * 105 lb 
D)  4.7 * 107 lb 
E)  4.7 * 108 lb 
A)  6.4 * 103 lb 
B)  6.4 * 104 lb 
C)  1.0 * 105 lb 
D)  4.7 * 107 lb 
E)  4.7 * 108 lb

Question 20

Of the following which is NOT a physical property

Accepted Answer

A)  Melting point 
B)  Boiling point 
C)  Density 
D)  Color 
E)  Ability to react with oxygen 
A)  Melting point 
B)  Boiling point 
C)  Density 
D)  Color 
E)  Ability to react with oxygen

Exam 1: Chemistry: The Study of Change

1 barrel of oil contains 42.0 gallons. How many liters is this (1L = 1.06 qt)

Ice cream is a pure substance.

A piece of metal with a mass of 611 g is placed into a graduated cylinder that contains 25.1 mL of water, raising the water level to 56.7 mL. What is the density of the metal

Which of the following is true of a mixture

Antifreeze boiling out of a radiator is a physical change.

Give the correct number of significant figures and units to the problem below. 8.22 m2 / 9.11 m =

Liquid nitrogen boils at -195.8 ∘\circ∘ C. Express the boiling point of liquid nitrogen in kelvin.

All of the following are properties of tin. Which one is a chemical property of tin

Air is a pure substance.

Give the correct number of significant figures and units to the problem below. 5.67 m/ 2.04 m2 =

The density of lead is 11.4 g/cm3. Express this density in pounds per cubic foot.

An automobile engine has a piston displacement of 1,600 cm3. Express this volume in liters.

Milk is a pure substance.

Convert 4.89 mm to µm.

Convert 4.5 x 104 to decimal format.

Give the correct number of significant figures to the problem below.6.2 x 10-13 x 5.68 x 108 =

What will be the cost of gasoline for a 3,700-mile trip in a car that gets 23 miles per gallon if the average price of gas is $3.90 per gallon

Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds * 60 yds to a depth of 1.0 mm (1 inch = 2.54 cm; 1 lb = 453.6 g)

Of the following which is NOT a physical property

Atoms Molecules and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

Give the correct number of significant figures and units to the problem below. 8.22 m² / 9.11 m =

Liquid nitrogen boils at -195.8^$\circ$C. Express the boiling point of liquid nitrogen in kelvin.

Give the correct number of significant figures and units to the problem below. 5.67 m/ 2.04 m² =

The density of lead is 11.4 g/cm³. Express this density in pounds per cubic foot.

An automobile engine has a piston displacement of 1,600 cm³. Express this volume in liters.

Convert 4.5 x 10⁴ to decimal format.

Give the correct number of significant figures to the problem below.6.2 x 10^-13 x 5.68 x 10⁸ =

Iron has a density of 7.87 g/cm³. What mass of iron would be required to cover a football playing surface of 120 yds * 60 yds to a depth of 1.0 mm (1 inch = 2.54 cm; 1 lb = 453.6 g)