Question 1

In which of the following are the masses given in the correct order?

Accepted Answer

A)  cg < mg < g <μg 
B)  cg < g < μg < mg 
C)  μg < mg < cg < g 
D)  μg < g < cg < mg 
A)  cg < mg < g <μg 
B)  cg < g < μg < mg 
C)  μg < mg < cg < g 
D)  μg < g < cg < mg

Question 2

Which of the following represents a physical change?

Accepted Answer

A)  boiling water 
B)  decomposition of a dead organism 
C)  both a and b 
D)  neither a nor b 
A)  boiling water 
B)  decomposition of a dead organism 
C)  both a and b 
D)  neither a nor b

Question 3

The area of Africa is approximately 11.7 million square miles. Which of the following is the correct way to express this number in scientific notation?

Accepted Answer

A)  1.17 × 105 
B)  1.17 × 106 
C)  1.17 × 107 
D)  none of these 
A)  1.17 × 105 
B)  1.17 × 106 
C)  1.17 × 107 
D)  none of these

Question 4

In which of the following are the lengths given in the correct order?

Accepted Answer

A)  cm > mm > m > km 
B)  cm > m > km > mm 
C)  km > m > cm > mm 
D)  mm > cm > m > km 
A)  cm > mm > m > km 
B)  cm > m > km > mm 
C)  km > m > cm > mm 
D)  mm > cm > m > km

Question 5

In which of the following are the masses given in the correct order?

Accepted Answer

A)  cg > mg > g >kg 
B)  cg > g > kg > mg 
C)  kg > g > cg > mg 
D)  mg > cg > g > kg 
A)  cg > mg > g >kg 
B)  cg > g > kg > mg 
C)  kg > g > cg > mg 
D)  mg > cg > g > kg

Question 6

Which of the following is a form of potential energy?

Accepted Answer

A)  chemical energy 
B)  nuclear energy 
C)  both a and b 
D)  neither a nor b 
A)  chemical energy 
B)  nuclear energy 
C)  both a and b 
D)  neither a nor b

Question 7

Which of the following is not an example of matter?

Accepted Answer

A)  the air in your lungs 
B)  the blood in your arteries 
C)  the sunlight coming through the window 
D)  None, all of these are matter. 
A)  the air in your lungs 
B)  the blood in your arteries 
C)  the sunlight coming through the window 
D)  None, all of these are matter.

Question 8

Which of the following is not a chemical change?

Accepted Answer

A)  rusting of a car body 
B)  ripening of fruit 
C)  souring of milk 
D)  None, all of these are chemical changes. 
A)  rusting of a car body 
B)  ripening of fruit 
C)  souring of milk 
D)  None, all of these are chemical changes.

Question 9

Iron has a density of 7.874 g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?

Accepted Answer

A)  7.629 g 
B)  60.00 g 
C)  94.48 g 
D)  472.4 g 
A)  7.629 g 
B)  60.00 g 
C)  94.48 g 
D)  472.4 g

Question 10

If one were to measure the distance from the photographer taking this picture to the ocean shown in the background, which of the following units would be the most appropriate?

Accepted Answer

A)  mm 
B)  km 
C)  cm 
D)  nm 
A)  mm 
B)  km 
C)  cm 
D)  nm

Question 11

Which metric prefix is commonly abbreviated using a Greek letter?

Accepted Answer

A)  mega 
B)  micro 
C)  milli 
D)  nano 
A)  mega 
B)  micro 
C)  milli 
D)  nano

Question 12

The specific heat of iron is 0.11 cal /g·°C Assuming that no heat is lost during the experiment, what will be the final temperature if 30.0 grams of iron at 95°C are added to 100.0 grams of water at 25°C?

Accepted Answer

A)  23°C 
B)  27°C 
C)  52°C 
D)  60°C 
A)  23°C 
B)  27°C 
C)  52°C 
D)  60°C

Question 13

Which of the following is a chemical property of gold?

Accepted Answer

A)  characteristic color 
B)  electrical conductivity 
C)  lack of reactivity 
D)  None, they are all physical properties. 
A)  characteristic color 
B)  electrical conductivity 
C)  lack of reactivity 
D)  None, they are all physical properties.

Question 14

The unit of weight used for precious stones is the carat (1 carat = 200 mg, exactly). If a particular 1.25 carat diamond cost $7000.00, what is the cost of a collection of identical diamonds which weighs 1.00 ounce? [1 ounce = 28.35 grams]

Accepted Answer

A)  $28,000 
B)  $35,000 
C)  $16,000 
D)  $790,000 
A)  $28,000 
B)  $35,000 
C)  $16,000 
D)  $790,000

Question 15

Given the calculation: 4.238 + 12.72 + 9.1 = ?, what is the answer reported to the correct number of significant figures?

Accepted Answer

A)  26.058 
B)  26.06 
C)  26.0 
D)  26.1 
A)  26.058 
B)  26.06 
C)  26.0 
D)  26.1

Question 16

What is the name of the instrument used to measure specific gravity?

Accepted Answer

A)  densitometer 
B)  gravimeter 
C)  hydrometer 
D)  spectrometer 
A)  densitometer 
B)  gravimeter 
C)  hydrometer 
D)  spectrometer

Question 17

The law of conservation of energy states which of the following?

Accepted Answer

A)  Kinetic energy is conserved. 
B)  Potential energy is conserved. 
C)  The sum of kinetic energy and potential energy is conserved. 
D)  all of the above 
A)  Kinetic energy is conserved. 
B)  Potential energy is conserved. 
C)  The sum of kinetic energy and potential energy is conserved. 
D)  all of the above

Question 18

An unknown substance has a mass of 56.8 g and a volume of 23.4 mL. What is the density of this unknown substance?

Accepted Answer

A)  0.411 g/mL 
B)  2.34 g/mL 
C)  2.43 g/mL 
D)  2.50 g/mL 
A)  0.411 g/mL 
B)  2.34 g/mL 
C)  2.43 g/mL 
D)  2.50 g/mL

Question 19

If gasoline costs $1.95 per gallon is its cost per liter? [1 quart = 0.946 liter]

Accepted Answer

A)  5.15 cents 
B)  51.5 cents 
C)  73.9 cents 
D)  7.39 cents 
A)  5.15 cents 
B)  51.5 cents 
C)  73.9 cents 
D)  7.39 cents

Question 20

The specific heat of iron is 0.11 cal /g·°C. What will be the final temperature if 275 calories are added to a 75.0 g piece of iron initially at 25°C?

Accepted Answer

A)  33°C 
B)  36°C 
C)  58°C 
D)  none of these 
A)  33°C 
B)  36°C 
C)  58°C 
D)  none of these

Exam 1: Matter, Energy, and Measurement

In which of the following are the masses given in the correct order?

Which of the following represents a physical change?

The area of Africa is approximately 11.7 million square miles. Which of the following is the correct way to express this number in scientific notation?

In which of the following are the lengths given in the correct order?

In which of the following are the masses given in the correct order?

Which of the following is a form of potential energy?

Which of the following is not an example of matter?

Which of the following is not a chemical change?

Iron has a density of 7.874 g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?

If one were to measure the distance from the photographer taking this picture to the ocean shown in the background, which of the following units would be the most appropriate?

Which metric prefix is commonly abbreviated using a Greek letter?

The specific heat of iron is 0.11 cal /g·°C Assuming that no heat is lost during the experiment, what will be the final temperature if 30.0 grams of iron at 95°C are added to 100.0 grams of water at 25°C?

Which of the following is a chemical property of gold?

The unit of weight used for precious stones is the carat (1 carat = 200 mg, exactly). If a particular 1.25 carat diamond cost $7000.00, what is the cost of a collection of identical diamonds which weighs 1.00 ounce? [1 ounce = 28.35 grams]

Given the calculation: 4.238 + 12.72 + 9.1 = ?, what is the answer reported to the correct number of significant figures?

What is the name of the instrument used to measure specific gravity?

The law of conservation of energy states which of the following?

An unknown substance has a mass of 56.8 g and a volume of 23.4 mL. What is the density of this unknown substance?

If gasoline costs $1.95 per gallon is its cost per liter? [1 quart = 0.946 liter]

The specific heat of iron is 0.11 cal /g·°C. What will be the final temperature if 275 calories are added to a 75.0 g piece of iron initially at 25°C?

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

Iron has a density of 7.874 g/cm³. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?