Question 1

Which of the following is the correct formula for dinitrogen pentoxide?

Accepted Answer

A)  O2N5 
B)  O5N2 
C)  N2O5 
D)  N5O2 
A)  O2N5 
B)  O5N2 
C)  N2O5 
D)  N5O2

Question 2

What is the valence shell electron configuration of all the noble gases except for helium?

Accepted Answer

A)  ns2 
B)  ns2np3 
C)  ns2np6 
D)  np8 
A)  ns2 
B)  ns2np3 
C)  ns2np6 
D)  np8

Question 3

The "ide" ending is usually, but not always, associated with monatomic anions. Which of the following polyatomic ions has a name which ends in "ide"?

Accepted Answer

A)  C2H3O2- 
B)  HPO42- 
C)  OH- 
D)  SO42- 
A)  C2H3O2- 
B)  HPO42- 
C)  OH- 
D)  SO42-

Question 4

Which of the following occurs when an ionic bond is formed?

Accepted Answer

A)  Electrons are transferred from the more electronegative element to the less electronegative element. 
B)  Electrons are transferred from the less electronegative element to the more electronegative element. 
C)  Electrons are shared equally. 
D)  Electrons are shared unequally. 
A)  Electrons are transferred from the more electronegative element to the less electronegative element. 
B)  Electrons are transferred from the less electronegative element to the more electronegative element. 
C)  Electrons are shared equally. 
D)  Electrons are shared unequally.

Question 5

FeSO4 is commonly used to treat iron deficiency. Which of the following is the correct name for this compound?

Accepted Answer

A)  iron sulfate 
B)  iron(II) sulfate 
C)  iron(III) sulfate 
D)  iron sulfur tetroxide 
A)  iron sulfate 
B)  iron(II) sulfate 
C)  iron(III) sulfate 
D)  iron sulfur tetroxide

Question 6

Which of the following molecules is nonpolar?

Accepted Answer

A)  CHCl3 
B)  CH2Cl2 
C)  CH3Cl 
D)  None, they are all polar. 
A)  CHCl3 
B)  CH2Cl2 
C)  CH3Cl 
D)  None, they are all polar.

Question 7

A compound used in the treatment of manic depression has the formula Li2CO3. Which of the following is the correct name for this compound?

Accepted Answer

A)  dilithium carbonate 
B)  lithium carbon trioxide 
C)  lithium carbonate 
D)  lithium carboxide 
A)  dilithium carbonate 
B)  lithium carbon trioxide 
C)  lithium carbonate 
D)  lithium carboxide

Question 8

What is the correct systematic name for FeCO3?

Accepted Answer

A)  ferric carbonate 
B)  ferrous carbonate 
C)  iron(I) carbonate 
D)  iron(II) carbonate 
A)  ferric carbonate 
B)  ferrous carbonate 
C)  iron(I) carbonate 
D)  iron(II) carbonate

Question 9

In what form is lithium administered when it is used as a drug in the treatment of manic depression?

Accepted Answer

A)  Li- 
B)  Li 
C)  Li+ 
D)  Li2+ 
A)  Li- 
B)  Li 
C)  Li+ 
D)  Li2+

Question 10

Which of the following atoms is least likely to form an ion?

Accepted Answer

A)  fluorine 
B)  magnesium 
C)  neon 
D)  sodium 
A)  fluorine 
B)  magnesium 
C)  neon 
D)  sodium

Question 11

Which of the following is true for the molecule O=C=S?

Accepted Answer

A)  O=C=S is nonpolar because it contains only double bonds. 
B)  O=C=S is nonpolar because it is linear. 
C)  O=C=S is polar because it has a bent shape. 
D)  O=C=S is polar because the polarities of the O=C and C=S do not cancel. 
A)  O=C=S is nonpolar because it contains only double bonds. 
B)  O=C=S is nonpolar because it is linear. 
C)  O=C=S is polar because it has a bent shape. 
D)  O=C=S is polar because the polarities of the O=C and C=S do not cancel.

Question 12

Which of the following approximates the H-N-H bond angle in ammonia, NH3?

Accepted Answer

A)  109.5° 
B)  107.3° 
C)  120.0 ° 
D)  90.0° 
A)  109.5° 
B)  107.3° 
C)  120.0 ° 
D)  90.0°

Question 13

Acetylene has the formula C2H2. Which of the following is a correct description of acetylene?

Accepted Answer

A)  Acetylene has only single bonds. 
B)  Acetylene has one double bond. 
C)  Acetylene has one triple bond. 
D)  None of these is correct. 
A)  Acetylene has only single bonds. 
B)  Acetylene has one double bond. 
C)  Acetylene has one triple bond. 
D)  None of these is correct.

Question 14

Which halogen atom is most electronegative?

Accepted Answer

A)  bromine 
B)  chlorine 
C)  fluorine 
D)  iodine 
A)  bromine 
B)  chlorine 
C)  fluorine 
D)  iodine

Question 15

Which of the following is true in general of all cations?

Accepted Answer

A)  A cation has equal numbers of protons and electrons. 
B)  A cation has fewer protons than electrons. 
C)  A cation has more protons than electrons. 
D)  A cation has more protons than neutrons. 
A)  A cation has equal numbers of protons and electrons. 
B)  A cation has fewer protons than electrons. 
C)  A cation has more protons than electrons. 
D)  A cation has more protons than neutrons.

Question 16

The toxic gas hydrogen cyanide has the formula HCN. How many nonbonding electrons must be shown in the Lewis structure of hydrogen cyanide?

Accepted Answer

A)  2 
B)  6 
C)  10 
D)  12 
A)  2 
B)  6 
C)  10 
D)  12

Question 17

How many electrons are associated with a double bond?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
A)  1 
B)  2 
C)  4 
D)  6

Question 18

What is the name of NO2?

Accepted Answer

A)  nitrogen oxide 
B)  nitrogen oxygen 
C)  nitrogen dioxide 
D)  nitrous oxide 
A)  nitrogen oxide 
B)  nitrogen oxygen 
C)  nitrogen dioxide 
D)  nitrous oxide

Question 19

What is the correct name for Al2(SO4)3?

Accepted Answer

A)  dialuminum trisulfate 
B)  aluminum trisulfate 
C)  aluminum sulfate 
D)  aluminum sulfoxide 
A)  dialuminum trisulfate 
B)  aluminum trisulfate 
C)  aluminum sulfate 
D)  aluminum sulfoxide

Question 20

Which of the following is the H-O-H bond angle in water, H2O?

Accepted Answer

A)  109.5° 
B)  120.0° 
C)  104.5° 
D)  90.0° 
A)  109.5° 
B)  120.0° 
C)  104.5° 
D)  90.0°

Exam 3: Chemical Bonds

Which of the following is the correct formula for dinitrogen pentoxide?

What is the valence shell electron configuration of all the noble gases except for helium?

The "ide" ending is usually, but not always, associated with monatomic anions. Which of the following polyatomic ions has a name which ends in "ide"?

Which of the following occurs when an ionic bond is formed?

FeSO4 is commonly used to treat iron deficiency. Which of the following is the correct name for this compound?

Which of the following molecules is nonpolar?

A compound used in the treatment of manic depression has the formula Li2CO3. Which of the following is the correct name for this compound?

What is the correct systematic name for FeCO3?

In what form is lithium administered when it is used as a drug in the treatment of manic depression?

Which of the following atoms is least likely to form an ion?

Which of the following is true for the molecule O=C=S?

Which of the following approximates the H-N-H bond angle in ammonia, NH3?

Acetylene has the formula C2H2. Which of the following is a correct description of acetylene?

Which halogen atom is most electronegative?

Which of the following is true in general of all cations?

The toxic gas hydrogen cyanide has the formula HCN. How many nonbonding electrons must be shown in the Lewis structure of hydrogen cyanide?

How many electrons are associated with a double bond?

What is the name of NO2?

What is the correct name for Al2(SO4)3?

Which of the following is the H-O-H bond angle in water, H2O?

Matter, Energy, and Measurement

Atoms

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

FeSO₄ is commonly used to treat iron deficiency. Which of the following is the correct name for this compound?

A compound used in the treatment of manic depression has the formula Li₂CO₃. Which of the following is the correct name for this compound?

What is the correct systematic name for FeCO₃?

Which of the following approximates the H-N-H bond angle in ammonia, NH₃?

Acetylene has the formula C₂H₂. Which of the following is a correct description of acetylene?

What is the name of NO₂?

What is the correct name for Al₂(SO₄)₃?

Which of the following is the H-O-H bond angle in water, H₂O?