Question 1

Chemical energy is an example of which of the following?

Accepted Answer

A)  kinetic energy 
B)  mechanical energy 
C)  potential energy 
D)  radiant energy 
A)  kinetic energy 
B)  mechanical energy 
C)  potential energy 
D)  radiant energy

Question 2

Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.37 g/L. What is the mass, in pounds of 1.00 quart of xenon? [1 liter = 1.057 quart; 1 pound = 453.6 grams]

Accepted Answer

A)  0.0112 lb 
B)  0.0125 lb 
C)  79.9 lb 
D)  89.3 lb 
A)  0.0112 lb 
B)  0.0125 lb 
C)  79.9 lb 
D)  89.3 lb

Question 3

Which of the following is true about specific gravity of a material?

Accepted Answer

A)  It has units of g/mL. 
B)  It is defined as the density of the material divided by the density of water. 
C)  both a and b 
D)  neither a nor b 
A)  It has units of g/mL. 
B)  It is defined as the density of the material divided by the density of water. 
C)  both a and b 
D)  neither a nor b

Question 4

Given the calculation: 17.712/7.610 = ?, what is the answer reported to the correct number of significant figures?

Accepted Answer

A)  2.32746 
B)  2.3275 
C)  2.327 
D)  2.33 
A)  2.32746 
B)  2.3275 
C)  2.327 
D)  2.33

Question 5

The population of the earth at the end of 2008 was approximately 6.7 × 109 people. Which of the following is correct way to represent this number?

Accepted Answer

A)  6,700,000,000 people 
B)  67,000,000,000 people 
C)  67,000,000,000,000 people 
D)  none of these 
A)  6,700,000,000 people 
B)  67,000,000,000 people 
C)  67,000,000,000,000 people 
D)  none of these

Question 6

How many minutes are in a 30 day month? [Assume exactly 24 hours in a day]

Accepted Answer

A)  7.20 × 102 
B)  4.32 × 104 
C)  2.59 × 106 
D)  3.11 × 107 
A)  7.20 × 102 
B)  4.32 × 104 
C)  2.59 × 106 
D)  3.11 × 107

Question 7

At the 2008 Olympics the Jamaican runner Usain Bolt ran the 100. meter dash in world record time of 9.69 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

Accepted Answer

A)  2.31 mph 
B)  4.33 mph 
C)  23.1 mph 
D)  43.3 mph 
A)  2.31 mph 
B)  4.33 mph 
C)  23.1 mph 
D)  43.3 mph

Question 8

Iron has a density of 7.874 g/cm3. What is the volume of a block of iron which weighs 15.321 g?

Accepted Answer

A)  0.008289 cm3 
B)  0.5139 cm3 
C)  1.946 cm3 
D)  120.6 cm3 
A)  0.008289 cm3 
B)  0.5139 cm3 
C)  1.946 cm3 
D)  120.6 cm3

Question 9

Which state of matter retains its volume but adapts its shape to that of its container?

Accepted Answer

A)  solid 
B)  liquid 
C)  gas 
D)  none of these 
A)  solid 
B)  liquid 
C)  gas 
D)  none of these

Question 10

Nuclear energy is an example of which for the following?

Accepted Answer

A)  kinetic energy 
B)  mechanical energy 
C)  potential energy 
D)  radiant energy 
A)  kinetic energy 
B)  mechanical energy 
C)  potential energy 
D)  radiant energy

Question 11

An object weighs 75.7 kg. What is the weight of this object expressed in the English system? [1 pound = 453.6 grams]

Accepted Answer

A)  16.7 pounds 
B)  167 pounds 
C)  343 pounds 
D)  34.3 pounds 
A)  16.7 pounds 
B)  167 pounds 
C)  343 pounds 
D)  34.3 pounds

Question 12

One long distance Olympic race is the 10,000 meter run. Which of the following is most nearly the length of this run to three significant figures in feet? [1 meter is slightly longer than 39 inches]

Accepted Answer

A)  6.09 × 103 ft 
B)  6.22 × 103 ft 
C)  1.00 × 104 ft 
D)  3.28 × 104 ft 
A)  6.09 × 103 ft 
B)  6.22 × 103 ft 
C)  1.00 × 104 ft 
D)  3.28 × 104 ft

Question 13

A particular material has a specific gravity of 1.04 at 20°C. As this material is heated from 20°C to 30°C its volume increases faster than does the volume of water. Which of the following statements is true of the specific gravity of this material as it is heated to 30°C?

Accepted Answer

A)  Its specific gravity decreases. 
B)  Its specific gravity increases. 
C)  Its specific gravity remains the same. 
D)  There is insufficient information to answer the question. 
A)  Its specific gravity decreases. 
B)  Its specific gravity increases. 
C)  Its specific gravity remains the same. 
D)  There is insufficient information to answer the question.

Question 14

Which of the following is not a form of kinetic energy?

Accepted Answer

A)  chemical energy 
B)  electrical energy 
C)  light energy 
D)  mechanical energy 
A)  chemical energy 
B)  electrical energy 
C)  light energy 
D)  mechanical energy

Question 15

How many calories of are required to heat 139 grams of water from 15°C to 88°C? (Assume that the specific heat of water is 1.00 cal/g·°C).

Accepted Answer

A)  73 cal 
B)  2.1 × 104 cal 
C)  1.0 × 104 cal 
D)  1.2 × 104 cal 
A)  73 cal 
B)  2.1 × 104 cal 
C)  1.0 × 104 cal 
D)  1.2 × 104 cal

Question 16

The specific heat of aluminum is 0.22 cal /g·°C Assuming that no heat is lost during the experiment, what will be the final temperature if 30.0 grams of aluminum at 95°C are added to 100.0 grams of water at 25°C?

Accepted Answer

A)  29°C 
B)  33°C 
C)  54°C 
D)  60°C 
A)  29°C 
B)  33°C 
C)  54°C 
D)  60°C

Question 17

The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/cm3
Silver = 12.59 g/cm3
Gold = 19.32 g/cm3
A sample of material is found to weigh 14.03 grams, and have a volume of 1.20 cm3. The sample could be which of the coinage metals?

Accepted Answer

A)  copper 
B)  silver 
C)  gold 
A)  copper 
B)  silver 
C)  gold

Question 18

Which of the following is an example of matter?

Accepted Answer

A)  the light of a flame 
B)  the sound of thunder 
C)  the air you breathe 
D)  None of these are matter. 
A)  the light of a flame 
B)  the sound of thunder 
C)  the air you breathe 
D)  None of these are matter.

Question 19

The specific heat of copper is 0.092 cal/g·°C. How much energy is required to heat 40.0 grams of copper from 25.0°C to 75.0°C?

Accepted Answer

A) 92 cal 
B) 184 cal 
C) 2.0 × 102 cal 
D) 280 cal 
A) 92 cal 
B) 184 cal 
C) 2.0 × 102 cal 
D) 280 cal

Question 20

What temperature on the Celsius is the same as normal body temperature 98.6°F?

Accepted Answer

A)  34.3°C 
B)  37.0°C 
C)  119.9°C 
D)  none of these 
A)  34.3°C 
B)  37.0°C 
C)  119.9°C 
D)  none of these

Exam 1: Matter, Energy, and Measurement

Chemical energy is an example of which of the following?

Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.37 g/L. What is the mass, in pounds of 1.00 quart of xenon? [1 liter = 1.057 quart; 1 pound = 453.6 grams]

Which of the following is true about specific gravity of a material?

Given the calculation: 17.712/7.610 = ?, what is the answer reported to the correct number of significant figures?

The population of the earth at the end of 2008 was approximately 6.7 × 109 people. Which of the following is correct way to represent this number?

How many minutes are in a 30 day month? [Assume exactly 24 hours in a day]

At the 2008 Olympics the Jamaican runner Usain Bolt ran the 100. meter dash in world record time of 9.69 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]

Iron has a density of 7.874 g/cm3. What is the volume of a block of iron which weighs 15.321 g?

Which state of matter retains its volume but adapts its shape to that of its container?

Nuclear energy is an example of which for the following?

An object weighs 75.7 kg. What is the weight of this object expressed in the English system? [1 pound = 453.6 grams]

One long distance Olympic race is the 10,000 meter run. Which of the following is most nearly the length of this run to three significant figures in feet? [1 meter is slightly longer than 39 inches]

A particular material has a specific gravity of 1.04 at 20°C. As this material is heated from 20°C to 30°C its volume increases faster than does the volume of water. Which of the following statements is true of the specific gravity of this material as it is heated to 30°C?

Which of the following is not a form of kinetic energy?

How many calories of are required to heat 139 grams of water from 15°C to 88°C? (Assume that the specific heat of water is 1.00 cal/g·°C).

The specific heat of aluminum is 0.22 cal /g·°C Assuming that no heat is lost during the experiment, what will be the final temperature if 30.0 grams of aluminum at 95°C are added to 100.0 grams of water at 25°C?

The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/cm3 Silver = 12.59 g/cm3 Gold = 19.32 g/cm3 A sample of material is found to weigh 14.03 grams, and have a volume of 1.20 cm3. The sample could be which of the coinage metals?

Which of the following is an example of matter?

The specific heat of copper is 0.092 cal/g·°C. How much energy is required to heat 40.0 grams of copper from 25.0°C to 75.0°C?

What temperature on the Celsius is the same as normal body temperature 98.6°F?

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes and Alkynes

Benzene and Its Derivatives

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

The population of the earth at the end of 2008 was approximately 6.7 × 10⁹ people. Which of the following is correct way to represent this number?

Iron has a density of 7.874 g/cm³. What is the volume of a block of iron which weighs 15.321 g?

The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/cm³ Silver = 12.59 g/cm³ Gold = 19.32 g/cm³ A sample of material is found to weigh 14.03 grams, and have a volume of 1.20 cm³. The sample could be which of the coinage metals?