Question 1

What is the correct name for MgO?

Accepted Answer

A)  monomagnesium monoxide 
B)  magnesium monoxide 
C)  magnesium oxide 
D)  magnesium oxygen 
A)  monomagnesium monoxide 
B)  magnesium monoxide 
C)  magnesium oxide 
D)  magnesium oxygen

Question 2

What is the correct name for BaI2?

Accepted Answer

A)  barium iodine 
B)  barium iodide 
C)  barium diiodide 
D)  monobarium diiodide 
A)  barium iodine 
B)  barium iodide 
C)  barium diiodide 
D)  monobarium diiodide

Question 3

An ionic bond is associated with which of the following?

Accepted Answer

A)  interactions between nuclei 
B)  equal sharing of electrons 
C)  unequal sharing of electrons 
D)  the transfer of electrons 
A)  interactions between nuclei 
B)  equal sharing of electrons 
C)  unequal sharing of electrons 
D)  the transfer of electrons

Question 4

Which of the following occurs when a sulfur atom is converted to S2-?

Accepted Answer

A)  The sulfur atom gains two electrons and loses two protons. 
B)  The sulfur atom gains two electrons. 
C)  The sulfur atom loses two electrons and two protons. 
D)  The sulfur loses two electrons. 
A)  The sulfur atom gains two electrons and loses two protons. 
B)  The sulfur atom gains two electrons. 
C)  The sulfur atom loses two electrons and two protons. 
D)  The sulfur loses two electrons.

Question 5

Which of the following symbols is used to denote that two or more representations of a species are resonance structures?

Accepted Answer

A)  → 
B)  ← 
C)    
D)  ↔ 
A)  → 
B)  ← 
C)    
D)  ↔

Question 6

In what form is fluorine administered when it is used to prevent tooth decay?

Accepted Answer

A)  F- 
B)  F 
C)  F2 
D)  F+ 
A)  F- 
B)  F 
C)  F2 
D)  F+

Question 7

Examine the following image representing the structure of a compound.  
-If the larger sphere represented S2-, the smaller sphere might represent which of the following?

Accepted Answer

A)  K+ 
B)  O2- 
C)  Mg2+ 
D)  Al3+ 
A)  K+ 
B)  O2- 
C)  Mg2+ 
D)  Al3+

Question 8

A student is attempting to draw several resonance structures for a species. Which of the following is allowed?

Accepted Answer

A)  Change the number of paired and unpaired electrons. 
B)  Move electrons from one location to another. 
C)  both a and b 
D)  neither a nor b 
A)  Change the number of paired and unpaired electrons. 
B)  Move electrons from one location to another. 
C)  both a and b 
D)  neither a nor b

Question 9

How many main types of chemical bonds exist?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 10

What is the name of the species formed when a sodium atom loses an electron?

Accepted Answer

A)  sodate 
B)  sodide 
C)  sodium 
D)  sodium ion 
A)  sodate 
B)  sodide 
C)  sodium 
D)  sodium ion

Question 11

The toxic gas hydrogen cyanide has the formula HCN. Which of the following is a correct description of hydrogen cyanide?

Accepted Answer

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

Question 12

How many nonbonding electrons are present in a molecule of water?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 13

Which of the following is the stannic ion?

Accepted Answer

A)  Sn+ 
B)  Sn2+ 
C)  Sn3+ 
D)  Sn4+ 
A)  Sn+ 
B)  Sn2+ 
C)  Sn3+ 
D)  Sn4+

Question 14

Formaldehyde has the chemical formula CH2O. How many nonbonding electrons must be shown in the Lewis structure of formaldehyde?

Accepted Answer

A)  0 
B)  4 
C)  8 
D)  12 
A)  0 
B)  4 
C)  8 
D)  12

Question 15

What is the formula of the compound formed by potassium and chlorine?

Accepted Answer

A)  KCl 
B)  KCl2 
C)  KCl3 
D)  K2Cl 
A)  KCl 
B)  KCl2 
C)  KCl3 
D)  K2Cl

Question 16

Which of the following ions has the same electronic configuration as argon?

Accepted Answer

A)  K+ 
B)  Ca2+ 
C)  both a and b 
D)  neither a nor b 
A)  K+ 
B)  Ca2+ 
C)  both a and b 
D)  neither a nor b

Question 17

What is the systematic name of CS2?

Accepted Answer

A)  carbon disulfur 
B)  carbon sulfide 
C)  carbon(IV) sulfide 
D)  carbon disulfide 
A)  carbon disulfur 
B)  carbon sulfide 
C)  carbon(IV) sulfide 
D)  carbon disulfide

Question 18

Which of the following molecules is(are) polar?

Accepted Answer

A)  CH3Cl 
B)  CH2Cl2 
C)  both of them 
D)  neither of them 
A)  CH3Cl 
B)  CH2Cl2 
C)  both of them 
D)  neither of them

Question 19

Which of the following compounds is used as an antacid?

Accepted Answer

A)  NaHCO3 
B)  NaNO3 
C)  Na3PO4 
D)  Na2SO4 
A)  NaHCO3 
B)  NaNO3 
C)  Na3PO4 
D)  Na2SO4

Question 20

Which of the following is true of the individual resonance structures which contribute to a resonance hybrid?

Accepted Answer

A)  Each resonance structure actually exists. 
B)  Each resonance structure is more stable than is the resonance hybrid. 
C)  In going from one resonance structure to another the electrons move from one location to another. 
D)  None of the above is true. 
A)  Each resonance structure actually exists. 
B)  Each resonance structure is more stable than is the resonance hybrid. 
C)  In going from one resonance structure to another the electrons move from one location to another. 
D)  None of the above is true.

Exam 3: Chemical Bonds

What is the correct name for MgO?

What is the correct name for BaI2?

An ionic bond is associated with which of the following?

Which of the following occurs when a sulfur atom is converted to S2-?

Which of the following symbols is used to denote that two or more representations of a species are resonance structures?

In what form is fluorine administered when it is used to prevent tooth decay?

Examine the following image representing the structure of a compound. -If the larger sphere represented S2-, the smaller sphere might represent which of the following?

A student is attempting to draw several resonance structures for a species. Which of the following is allowed?

How many main types of chemical bonds exist?

What is the name of the species formed when a sodium atom loses an electron?

The toxic gas hydrogen cyanide has the formula HCN. Which of the following is a correct description of hydrogen cyanide?

How many nonbonding electrons are present in a molecule of water?

Which of the following is the stannic ion?

Formaldehyde has the chemical formula CH2O. How many nonbonding electrons must be shown in the Lewis structure of formaldehyde?

What is the formula of the compound formed by potassium and chlorine?

Which of the following ions has the same electronic configuration as argon?

What is the systematic name of CS2?

Which of the following molecules is(are) polar?

Which of the following compounds is used as an antacid?

Which of the following is true of the individual resonance structures which contribute to a resonance hybrid?

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

What is the correct name for BaI₂?

Which of the following occurs when a sulfur atom is converted to S^2-?

Examine the following image representing the structure of a compound. -If the larger sphere represented S^2-, the smaller sphere might represent which of the following?

Formaldehyde has the chemical formula CH₂O. How many nonbonding electrons must be shown in the Lewis structure of formaldehyde?

What is the systematic name of CS₂?