Chemistry 5th edition

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Steven S. Zumdahl and Susan A. Zumdahl
Publisher: Cengage Learning


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  • Chapter 1: Chemical Foundations
    • 1: Significant Figures and Unit Conversion (8)
    • 1: Temperature (2)
    • 1: Density (6)
    • 1: Classification and Separation of Matter (2)
    • 1: Discussion Questions (1)
    • 1: Questions (1)
    • 1: Additional Exercises (1)
    • 1: Challenge Problems (2)

  • Chapter 2: Atoms, Molecules, and Ions
    • 2: Development of the Atomic Theory (4)
    • 2: The Nature of the Atom (20)
    • 2: Nomenclature (9)
    • 2: Discussion Questions (2)
    • 2: Questions (3)
    • 2: Additional Exercises (6)
    • 2: Challenge Problems

  • Chapter 3: Stoichiometry
    • 3: Atomic Masses and the Mass Spectrometer (5)
    • 3: Moles and Molar Masses (12)
    • 3: Percent Composition (5)
    • 3: Empirical and Molecular Formulas (6)
    • 3: Balancing Chemical Equations (4)
    • 3: Reaction Stoichiometry (4)
    • 3: Limiting Reactants and Percent Yield (2)
    • 3: Discussion Questions (4)
    • 3: Questions (3)
    • 3: Additional Exercises (13)
    • 3: Challenge Problems (2)

  • Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
    • 4: Aqueous Solutions: Strong and Weak Electrolytes (1)
    • 4: Solution Concentration: Molarity (10)
    • 4: Precipitation Reactions (7)
    • 4: Acid–Base Reactions (6)
    • 4: Oxidation–Reduction Reactions (9)
    • 4: Discussion Questions (2)
    • 4: Questions (1)
    • 4: Additional Exercises (7)
    • 4: Challenge Problems (6)

  • Chapter 5: Gases
    • 5: Pressure (4)
    • 5: Gas Laws (16)
    • 5: Gas Density, Molar Mass, and Reaction Stoichiometry (11)
    • 5: Partial Pressure (9)
    • 5: Kinetic Molecular Theory and Real Gases (10)
    • 5: Atmosphere Chemistry (3)
    • 5: Discussion Questions (4)
    • 5: Questions (5)
    • 5: Additional Exercises (14)
    • 5: Challenge Problems

  • Chapter 6: Thermochemistry
    • 6: Potential and Kinetic Energy (1)
    • 6: Heat and Work (6)
    • 6: Properties of Enthalpy (5)
    • 6: Calorimetry and Heat Capacity (8)
    • 6: Hess's Law (4)
    • 6: Standard Enthalpies of Formation (6)
    • 6: Energy Consumption and Sources (3)
    • 6: Discussion Questions (2)
    • 6: Questions (2)
    • 6: Additional Exercises (10)
    • 6: Challenge Problems (4)

  • Chapter 7: Atomic Structure and Periodicity
    • 7: Light and Matter (9)
    • 7: Hydrogen Atom: The Bohr Model (5)
    • 7: Quantum Mechanics, Quantum Numbers, and Orbitals (7)
    • 7: Polyelectronic Atoms (10)
    • 7: The Periodic Table and Periodic Properties (7)
    • 7: Alkali and Alkaline Earth Elements (4)
    • 7: Discussion Questions (1)
    • 7: Questions (8)
    • 7: Additional Exercises (8)
    • 7: Challenge Problems (1)

  • Chapter 8: Bonding: General Concepts
    • 8: Chemical Bonds and Electronegativity (5)
    • 8: Ions and Ionic Compounds (12)
    • 8: Bond Energies (11)
    • 8: Lewis Structures and Resonance (8)
    • 8: Formal Charge (2)
    • 8: Molecular Structure and Polarity (11)
    • 8: Discussion Questions (1)
    • 8: Questions (4)
    • 8: Additional Exercises (5)
    • 8: Challenge Problems (5)

  • Chapter 9: Covalent Bonding: Orbitals
    • 9: The Localized Electron Model and Hybrid Orbitals (12)
    • 9: The Molecular Orbital Model (9)
    • 9: Discussion Questions (1)
    • 9: Questions
    • 9: Additional Exercises (4)
    • 9: Challenge Problems (2)

  • Chapter 10: Liquids and Solids
    • 10: Intermolecular Forces and Physical Properties (7)
    • 10: Properties of Liquids (2)
    • 10: Structures and Properties of Solids (18)
    • 10: Phase Changes and Phase Diagrams (7)
    • 10: Discussion Questions
    • 10: Questions (9)
    • 10: Additional Exercises (6)
    • 10: Challenge Problems

  • Chapter 11: Properties of Solutions
    • 11: Concentration of Solutions (5)
    • 11: Energetics of Solutions and Solubility (4)
    • 11: Vapor Pressures of Solutions (4)
    • 11: Colligative Properties (5)
    • 11: Properties of Electrolyte Solution (2)
    • 11: Discussion Questions
    • 11: Questions (2)
    • 11: Additional Exercises (2)
    • 11: Challenge Problems (2)

  • Chapter 12: Chemical Kinetics
    • 12: Reaction Rates (4)
    • 12: Rate Laws from Experimental Data: Initial Rates Method (4)
    • 12: Integrated Rate Laws (9)
    • 12: Reaction Mechanisms (2)
    • 12: Temperature Dependence of Rate Constants and the Collision Model (5)
    • 12: Catalysts (2)
    • 12: Discussion Questions
    • 12: Questions (3)
    • 12: Additional Exercises (6)
    • 12: Challenge Problems (3)

  • Chapter 13: Chemical Equilibrium
    • 13: Characteristics of Chemical Equilibria (1)
    • 13: The Equilibrium Constant (8)
    • 13: Equilibrium Calculations (12)
    • 13: Le Châtelier's Principle (4)
    • 13: Discussion Questions
    • 13: Questions (1)
    • 13: Additional Exercises (5)
    • 13: Challenge Problems (2)

  • Chapter 14: Acids and Bases
    • 14: Nature of Acids and Bases (3)
    • 14: Autoionization of Water and the pH Scale (4)
    • 14: Solutions of Acids (10)
    • 14: Solutions of Bases (6)
    • 14: Polyprotic Acids (1)
    • 14: Acid–Base Properties of Salts (3)
    • 14: Relationships Between Structure and Strengths of Acids and Bases (1)
    • 14: Lewis Acids and Bases (1)
    • 14: Discussion Questions
    • 14: Questions (1)
    • 14: Additional Exercises (3)
    • 14: Challenge Problems (1)

  • Chapter 15: Applications of Aqueous Equilibria
    • 15: Buffers (17)
    • 15: Acid–Base Titrations (8)
    • 15: Indicators (2)
    • 15: Solubility Equilibria (10)
    • 15: Complex Ion Equilibria (4)
    • 15: Discussion Questions
    • 15: Questions
    • 15: Additional Exercises (4)
    • 15: Challenge Problems (1)

  • Chapter 16: Spontaneity, Entropy, and Free Energy
    • 16: Spontaneity, Entropy, and the Second Law of Thermodynamics: Free Energy (8)
    • 16: Chemical Reactions: Entropy Changes and Free Energy (11)
    • 16: Free Energy: Pressure Dependence and Equilibrium (7)
    • 16: Discussion Questions
    • 16: Questions (1)
    • 16: Additional Exercises (5)
    • 16: Challenge Problems (1)

  • Chapter 17: Electrochemistry
    • 17: Galvanic Cells, Cell Potentials, Standard Reduction Potentials, and Free Energy (12)
    • 17: The Nernst Equation (11)
    • 17: Electrolysis (7)
    • 17: Discussion Questions
    • 17: Questions (2)
    • 17: Additional Exercises (3)
    • 17: Challenge Problems (2)

  • Chapter 18: The Representative Elements: Groups 1A Through 4A
    • 18: Group 1A Elements (5)
    • 18: Group 2A Elements (5)
    • 18: Group 3A Elements (4)
    • 18: Group 4A Elements (6)
    • 18: Discussion Questions
    • 18: Questions (3)
    • 18: Additional Exercises (4)
    • 18: Challenge Problems (2)

  • Chapter 19: The Representative Elements: Groups 5A Through 8A
    • 19: Group 5A Elements (12)
    • 19: Group 6A Elements (5)
    • 19: Group 7A Elements (4)
    • 19: Group 8A Elements (3)
    • 19: Discussion Questions
    • 19: Questions (3)
    • 19: Additional Exercises (5)
    • 19: Challenge Problems (2)

  • Chapter 20: Transition Metals and Coordination Chemistry
    • 20: Transition Metals (4)
    • 20: Coordination Compounds (9)
    • 20: Bonding, Color, and Magnetism in Coordination Compounds (4)
    • 20: Metallurgy (2)
    • 20: Discussion Questions
    • 20: Questions (3)
    • 20: Additional Exercises (2)
    • 20: Challenge Problems (2)

  • Chapter 21: The Nucleus: A Chemist's View
    • 21: Radioactive Decay and Nuclear Transformations (5)
    • 21: Kinetics of Radioactive Decay (7)
    • 21: Energy Changes in Nuclear Reactions (5)
    • 21: Detection, Uses, and Health Effects of Radiation (3)
    • 21: Discussion Questions
    • 21: Questions (3)
    • 21: Additional Exercises (3)
    • 21: Challenge Problems (2)

  • Chapter 22: Organic Chemistry
    • 22: Hydrocarbons (5)
    • 22: Isomerism (2)
    • 22: Functional Groups (4)
    • 22: Reactions of Organic Compounds
    • 22: Polymers
    • 22: Discussion Questions
    • 22: Questions
    • 22: Additional Exercises
    • 22: Challenge Problems

  • Chapter 23: Biochemistry
    • 23: Proteins and Amino Acids (6)
    • 23: Carbohydrates (1)
    • 23: Optical Isomerism and Chiral Carbon Atoms
    • 23: Nucleic Acids (2)
    • 23: Lipids and Steroids (2)
    • 23: Discussion Questions
    • 23: Questions (3)
    • 23: Additional Exercises (5)
    • 23: Challenge Problems

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

Question Group Key
AE - Additional Exercise
CP - Challenge Problem
DQ - Discussion Question
E - Exercise
Q - Question


Question Availability Color Key
BLACK questions are available now
GRAY questions are under development


Group Quantity Questions
Chapter 1: Chemical Foundations
1.AE 1 074
1.CP 2 082 088
1.DQ 1 010
1.E 18 024 026 030 034 036 038 040 046 048 050 054 055 056 058 060 062 064 066
1.Q 1 019
Chapter 2: Atoms, Molecules, and Ions
2.AE 6 076 077 078 081 082 085
2.DQ 2 006 010
2.E 33 024 025 026 028 029 030 031 032 034 036 038 040 042 044 046 048 050 052 053 056 057 058 059 060 061 062 064 065 066 068 070 072 074
2.Q 3 016 018 020
Chapter 3: Stoichiometry
3.AE 13 100 102 104 106 107 108 109 110 111 113 114 115 116
3.CP 2 121 122
3.DQ 4 005 007 008 009
3.E 39 022 024 025 026 027 030 032 036 038 040 042 044 050 051 052 053 054 058 059 060 061 062 066 068 070 072 076 078 082 084 086 088 090 092 094 096 098 104 116
3.Q 3 018 019 020
Chapter 4: Types of Chemical Reactions and Solution Stoichiometry
4.AE 10 070 071 072 073 074 075 076 080 081 083
4.CP 7 080 086 092 094 096 098 099
4.DQ 2 005 007
4.E 36 011 016 018 020 022 023 024 025 026 027 028 030 034 036 038 040 042 043 046 048 050 052 054 056 058 059 060 061 062 064 065 066 068 072 073 076
4.Q 1 010
Chapter 5: Gases
5.AE 14 095 097 098 100 101 102 103 104 105 107 108 109 110 118
5.DQ 4 006 009 011 012
5.E 53 023 024 027 028 029 030 031 032 033 034 035 036 038 039 041 042 043 044 045 046 047 048 049 050 051 052 054 055 056 057 058 061 062 063 064 065 066 067 068 069 071 072 073 074 075 078 082 084 085 086 087 088 090
5.Q 5 016 018 020 021 022
Chapter 6: Thermochemistry
6.AE 10 075 076 078 080 082 083 084 086 087 088
6.CP 4 089 090 092 093
6.DQ 2 003 006
6.E 34 018 022 023 024 026 026alt 027 028 030 032 033 034 036 038 040 042 044 046 047 048 050 052 054 056 058 062 063 064 065 066 068 070 072 074
6.Q 2 009 012
Chapter 7: Atomic Structure and Periodicity
7.AE 8 111 112 113 114 116 120 121 127
7.CP 1 132
7.DQ 1 001
7.E 43 038 040 041 042 043 044 045 046 048 050 053 054 055 056 057 058 060 061 062 063 064 065 066 068 070 071 072 076 079 080 082 084 086 088 094 096 098 100 102 104 106 108 110
7.Q 9 016 019 022 025 027 028 029 033 034
Chapter 8: Bonding: General Concepts
8.AE 5 098 102 103 106 109
8.CP 5 110 112 115 117 120
8.DQ 1 010
8.E 50 020 021 022 024 026 029 030 032 034 035 035.alt 036 038 039 040 042 044 046 047 048 050 051 052 054 056 057 059 060 061 063 064 066 067 068 070 072 074 076 078 080 082 083 084 086 088 089 090 092 094 095
8.Q 4 013 015 016 017
Chapter 9: Covalent Bonding: Orbitals
9.AE 4 052 054 056 059
9.CP 2 063 067
9.DQ 1 004
9.E 21 016 017 018 020 022 024 025 026 028 029 030 032 033 035 037 038 042 044 048 049 050
Chapter 10: Liquids and Solids
10.AE 6 094 096 098 102 104 105
10.E 36 035 036 037 038 039 041 042 044 046 047 048 049 050 051 052 054 056 061 062 064 068 069 070 071 072 073 076 080 080alt 082 082alt 084 087 088 090 092
10.Q 9 012 013 014 016 017 018 022 030 034
Chapter 11: Properties of Solutions
11.AE 2 084 087
11.CP 2 088 092
11.E 20 028 029 030 032 034 036 039 040 042 047 048 050 052 060 062 064 066 068 074 078
11.Q 2 024 026
11.SR 1 010
Chapter 12: Chemical Kinetics
12.AE 6 064 065 066 067 068 070
12.CP 3 072 074 076
12.E 27 019 020 021 021.alt 022 024 026 027 028 030 032 034 035 036 038 040 042 044 046 048 051 052 054 056 058 060 062
12.Q 3 012 014 018
Chapter 13: Chemical Equilibrium
13.AE 6 068 070 071 071.sig_figs 072 074
13.CP 2 078 082
13.E 25 017 020 022 024 026 028 030 032 034 038 040 042 043 044 046 048 050 052 054 056 058 060 062 064 066
13.Q 1 016
Chapter 14: Acids and Bases
14.AE 3 130 132 142
14.CP 1 146
14.E 34 028 030 032 034 038 040 044 046 048 050 052 054 056 058 060 062 066 068 070 074 076 084 086 088 092 094 096 102 108 110 114 116 120 124
14.Q 1 024
Chapter 15: Applications of Aqueous Equilibria
15.AE 4 114 116 120 125
15.CP 1 130
15.E 42 024 026 027 028 030 032 034 036 038 040 042 044 045 048 050 052 053 055 058 060 061 062 064 066 067 077 078 080 082 084 086 088 092 094 096 098 100 104 108 109 110 132
Chapter 16: Spontaneity, Entropy, and Free Energy
16.AE 5 072 076 077 078 080
16.CP 1 084
16.E 26 018 020 022 024 026 028 029 030 034 036 038 040 042 046 048 050 051 052 054 056 058 059 060 061 062 064
16.Q 1 014
Chapter 17: Electrochemistry
17.AE 3 100 102 112
17.CP 2 114 116
17.E 32 014 016 026 028 034 036 038 040 042 044 046 048 050 052 056 058 060 062 064 066 070 072 074 076 078 080 082 084 086 088 092 094
17.Q 2 018 024
Chapter 18: The Representative Elements: Groups 1A Through 4A
18.AE 4 051 053 057 060
18.CP 2 064 068
18.E 20 016 017 018 020 022 023 027 030 031 032 033 034 036 038 041 044 045 046 047 048
18.Q 3 003 011 014
Chapter 19: The Representative Elements: Groups 5A Through 8A
19.AE 5 024 049 051 052 054
19.CP 2 056 058
19.E 24 012 013 014 017 018 019 020 021 022 023 025 026 029 030 031 032 033 036 037 038 040 041 042 044
19.Q 3 002 006 008
Chapter 20: Transition Metals and Coordination Chemistry
20.AE 2 062 067
20.CP 2 068 074
20.E 19 021 023 025 026 030 031 033 034 035 036 038 043 045 052 053 054 055 059 060
20.Q 3 008 012 017
Chapter 21: The Nucleus: A Chemist's View
21.AE 3 046 047 048
21.CP 2 050 052
21.E 20 010 012 013 016 018 020 022 024 025 026 028 029 032 034 035 036 038 039 043 044
21.Q 3 002 004 007
Chapter 22: Organic Chemistry
22.E 11 019 020 022 026 028 030 038 041 042 043 049
Chapter 23: Biochemistry
23.AE 5 052 053 054 057 058
23.E 11 014 015 016 020 022 024 028 035 039 044 047
23.Q 3 001 004 010
Total 923