Chemistry: Structures of Life 2007 edition

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Karen C. Timberlake
Publisher: Pearson Education


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  • Chapter 1: Measurements
    • 1.1: Scientific Method: Thinking Like a Scientist (1)
    • 1.2: Measurement and Scientific Notation (3)
    • 1.3: Measured Numbers and Significant Figures (1)
    • 1.4: Significant Figures in Calculations (2)
    • 1.5: Prefixes and Equalities (2)
    • 1.6: Writing Conversion Factors (1)
    • 1.7: Problem Solving (2)
    • 1.8: Density (4)
    • 1.9: Temperature (1)
    • 1: Understanding Concepts
    • 1: Additional Problems and Questions (4)
    • 1: Challenge Questions
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 2: Atoms and Elements
    • 2.1: Calssification of Matter
    • 2.2: Elements and Symbols (2)
    • 2.3: The Periodic Table (2)
    • 2.4: The Atom (1)
    • 2.5: Atomic Number and Mass Number
    • 2.6: Isotopes and Atomic Mass (2)
    • 2.7: Electron Energy Levels
    • 2.8: Electron Configurations (1)
    • 2.9: Periodic Trends (2)
    • 2: Understanding the Concepts
    • 2: Additional Questions and Problems (1)
    • 2: Challenge Questions (1)
    • WebAssign Answer Entry Tutorials (3)

  • Chapter 3: Nuclear Chemistry
    • 3.1: Natural Radioactivity (4)
    • 3.2: Nucler Equations (3)
    • 3.3: Radiation Measurement (2)
    • 3.4: Half-Life of a Radioisotope (1)
    • 3.5: Medical Applications Using Radioactivity (2)
    • 3.6: Nuclear Fission and Fusion (2)
    • 3: Understanding the Concepts
    • 3: Additional Problems and Questions (9)
    • 3: Challenge Questions
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  • Chapter 4: Compounds and Their Bonds
    • 4.1: Octet Rule and Ions (4)
    • 4.2: Ionic Compounds (3)
    • 4.3: Naming Ionic Compounds (2)
    • 4.4: Polyatomic Ions
    • 4.5: Covalent Compounds
    • 4.6: Naming and Writing Covalent Formulas (1)
    • 4.7: Electronegativity and Bond Polarity
    • 4.8: Shapes and Polarity of Molecules (2)
    • 4: Understanding the Concepts
    • 4: Additional Problems and Questions
    • 4: Challenge Questions
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  • Chapter 5: Chemical Reactions and Quantities
    • 5.1:Chemical Changes (1)
    • 5.2: Chemical Equations (1)
    • 5.3: Types of Reactions (2)
    • 5.4: Oxidation-Reduction Reactions (2)
    • 5.5: The Mole
    • 5.6: Molar Mass (7)
    • 5.7: Mole Relationships in Chemical Equations (2)
    • 5.8: Mass Calculations for Reactions (1)
    • 5.9: Percent Yield and Limiting Reactants (1)
    • 5: Understanding the Concepts
    • 5: Additional Problems and Questions (3)
    • 5: Challenge Questions
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  • Chapter 6: Energy and Matter
    • 6.1: Energy (1)
    • 6.2: Energy in Chemical Reactions
    • 6.3: Specific Heat (3)
    • 6.4: Energy and Nutrition (1)
    • 6.5: States of Matter (3)
    • 6.6: Changes of State (3)
    • 6: Understanding the Concepts
    • 6: Additional Problems and Questions (2)
    • 6: Challenge Questions (1)
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  • Chapter 7: Gases
    • 7.1: Properties of Gases (2)
    • 7.2: Gas Pressure (2)
    • 7.3: Pressure and Volume (Boyle's Law) (3)
    • 7.4: Temperature and Volume (Charles' Law) (3)
    • 7.5: Temperature and Pressure (Gay-Lussac's Law) (1)
    • 7.6: The Combined Gas Law
    • 7.7: Volume and Moles (Avogadro's Law) (1)
    • 7.8: The Ideal Gas Law (2)
    • 7.9: Partial Pressures (Dalton's Law)
    • 7: Understanding the Concepts
    • 7: Additional Problems and Questions (3)
    • 7: Challenge Questions (1)
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  • Chapter 8: Solutions
    • 8.1: Solutions (2)
    • 8.2: Electrolytes and Nonelectrolytes (3)
    • 8.3: Solubility (2)
    • 8.4: Percent Concentration (4)
    • 8.5: Molarity and Dilution (2)
    • 8.6: Properties of Solutions (2)
    • 8: Understanding the Concepts
    • 8: Additional Problems and Questions (5)
    • 8: Challenge Questions
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  • Chapter 9: Chemical Equilibrium
    • 9.1: Rates of Reactions
    • 9.2: Chemical Equilibrium
    • 9.3: Equilibrium Constants
    • 9.4: Using Equilibrium Constants
    • 9.5: Changing Equilibrium Conditions: Le Chatelier's Principle (1)
    • 9: Understanding the Concepts (3)
    • 9: Additional Problems and Questions (7)
    • 9: Challenge Questions (3)
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  • Chapter 10: Acids and Bases
    • 10.1: Acids and Bases (1)
    • 10.2: Bronsted-Lowry Acids and Bases (2)
    • 10.3: Strengths of Acids and Bases (5)
    • 10.4: Ionization of Water (4)
    • 10.5: The pH Scale (2)
    • 10.6: Reactions of Acids and Bases
    • 10.7: Acid-Base Properties of Salt Solutions
    • 10.8: Buffers (3)
    • 10: Understanding the Concepts
    • 10: Additional Problems and Questions
    • 10: Challenge Questions
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  • Chapter 11: Introduction to Organic Chemistry: Alkanes
    • 11.1: Organic Compounds (1)
    • 11.2: Alkanes (3)
    • 11.3: Alkanes with Substituents (7)
    • 11.4: Properties of Alkanes (4)
    • 11.5: Functional Groups
    • 11: Understanding the Concepts
    • 11: Additional Problems and Questions
    • 11: Challenge Questions
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  • Chapter 12: Unsaturated Hydrocarbons
    • 12.1: Alkenes and Alkynes (1)
    • 12.2: Cis-Trans Isomers (3)
    • 12.3: Additional Reactions (2)
    • 12.4: Polymers of Alkenes (4)
    • 12.5: Aromatic Compounds (1)
    • 12.6: Properties of Aromatic Compounds (3)
    • 12: Understanding the Concepts
    • 12: Additional Problems and Questions (5)
    • 12: Challenge Questions
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  • Chapter 13: Alcohols, Phenols, Thiols, and Ethers
    • 13.1: Alcohols, Phenols, and Thiols (2)
    • 13.2: Ethers (1)
    • 13.3: Physical Properties of Alcohols, Phenols, and Ethers
    • 13.4: Reactions of Alcohols and Thiols (4)
    • 13: Understanding the Concepts
    • 13: Additional Problems and Questions (5)
    • 13: Challenge Questions (2)
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  • Chapter 14: Aldehydes, Ketones, and Chiral Molecules
    • 14.1: Aldehydes and Ketones (2)
    • 14.2: Physical Properties of Aldehydes and Ketones
    • 14.3: Oxidations and Reduction of Aldehydes and Ketones
    • 14.4: Addition Reactions of Aldehydes and Ketones (3)
    • 14.5: Chiral Molecules
    • 14: Understanding the Concepts
    • 14: Additional Problems and Questions (5)
    • 14: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 15: Carbohydrates
    • 15.1: Carbohydrates (5)
    • 15.2: Structures of Monosaccharides (6)
    • 15.3: Cyclic Structures of Monosaccharides (3)
    • 15.4: Chemical Properties of Monosaccharides
    • 15.5: Disaccharides (2)
    • 15.6: Polysaccharides (1)
    • 15: Understanding the Concepts
    • 15: Additional Problems and Questions (7)
    • 15: Challenge Questions (1)
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  • Chapter 16: Carboxylic Acids and Esters
    • 16.1: Carboxylic Acids (2)
    • 16.2: Properties of Carboxylic Acids
    • 16.3: Esters (3)
    • 16.4: Naming Esters (1)
    • 16.5: Properties of Esters (1)
    • 16: Understanding the Concepts
    • 16: Additional Problems and Questions (2)
    • 16: Challenge Questions
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  • Chapter 17: Lipids
    • 17.1: Lipids
    • 17.2: Fatty Acids (7)
    • 17.3: Waxes, Fats, and Oils (4)
    • 17.4: Chemical Properties of Triacylglycerols (1)
    • 17.5: Glycerophospholipids (2)
    • 17.6: Sphingolipids (1)
    • 17.7: Steroids: Cholesterol, Bile Salts, and Steroid Hormones (1)
    • 17.8: Cell Membranes (1)
    • 17: Understanding the Concepts
    • 17: Additional Problems and Questions (1)
    • 17: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 18: Amines and Amides
    • 18.1: Amines (3)
    • 18.2: Properties of Amines (3)
    • 18.3: Heterocyclic Amines and Alkaloids (1)
    • 18.4: Amides (2)
    • 18.5: Hydrolysis of Amides
    • 18: Understanding the Concepts
    • 18: Additional Problems and Questions (2)
    • 18: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 19: Amino Acids and Proteins
    • 19.1: Proteins and Amino Acids (6)
    • 19.2: Amino Acids as Acids and Bases (5)
    • 19.3: Formation of Peptides
    • 19.4: Protein Structure: Primary and Secondary Levels (2)
    • 19.5: Protein Structure: Tertiary and Quaternary Levels (1)
    • 19.6: Protein Hydrolysis and Denaturation
    • 19: Understanding the Concepts
    • 19: Additional Problems and Questions
    • 19: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 20: Enzymes and Vitamins
    • 20.1: Enzymes (2)
    • 20.2: Enzyme Action (2)
    • 20.3: Factos Affecting Enzyme Activity
    • 20.4: Enzyme Inhibition (1)
    • 20.5: Control of Enzyme Activity (1)
    • 20.6: Enzyme Cofactors and Vitamins (2)
    • 20: Understanding the Concepts
    • 20: Additional Problems and Questions (3)
    • 20: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 21: Nucleic Acid and Protein Synthesis
    • 21.1: Components of Nucleic Acids (1)
    • 21.2: Primary Structure of Nucleic Acids
    • 21.3: DNA Double Helix (2)
    • 21.4: DNA Replication (1)
    • 21.5: RNA and Transcription (2)
    • 21.6: Genetic Code (1)
    • 21.7: Protein Synthesis: Translation (2)
    • 21.8: Genetic Mutations
    • 21.9: Recombinant DNA (1)
    • 21.10: Viruses
    • 21: Understanding the Concepts
    • 21: Additional Problems and Questions (2)
    • 21: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 22: Metabolic Pathways for Carbohydrates
    • 22.1: Metabolism and Cell Structure (2)
    • 22.2: ATP and Energy
    • 22.3: Important Coenzymes in Metabolic Pathway (3)
    • 22.4: Digestion of Carbohydrates (1)
    • 22.5: Glycolysis: Oxidation of Glucose (4)
    • 22.6: Pathways for Pyruvate
    • 22.7: Glycogen Metabolism
    • 22.8: Gluconeogenesis: Glucose Synthesis
    • 22: Understanding the Concepts
    • 22: Additional Problems and Questions
    • 22: Challenge Questions
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  • Chapter 23: Metabolism and Energy Production
    • 23.1: The Citric Acid Cycle (2)
    • 23.2: Electron Carriers (1)
    • 23.3: Electron Transport (1)
    • 23.4: Oxidative Phosphorylation and ATP (2)
    • 23.5: ATP Energy from Glucose (1)
    • 23: Understanding the Concepts
    • 23: Additional Problems and Questions (5)
    • 23: Challenge Questions
    • WebAssign Answer Entry Tutorials

  • Chapter 24: Metabolic Pathways for Lipids and Amino Acids
    • 24.1: Digestion of Triacylglycerols (1)
    • 24.2: Oxidation of Fatty Acids (2)
    • 24.3: ATP and Fatty Acid Oxidation
    • 24.4: Ketogenesis and Ketone Bodies
    • 24.5: Fatty Acid Synthesis (2)
    • 24.6: Digestion of Proteins
    • 24.7: Degradation of Amino Acids (1)
    • 24.8: Urea Cycle (1)
    • 24.9: Fates of the Carbon Atoms from Amino Acids
    • 24.10: Synthesis of Amino Acids (1)
    • 24: Understanding the Concepts
    • 24: Additional Problems and Questions (1)
    • 24: Challenge Questions
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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
AP - Additional Problems and Questions
QP - Questions and Problems
CQ - Challenge Questions
UC - Understanding Concepts
T - Tutorials & Templates


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


Group Quantity Questions
Chapter 1: Measurements
1.AP 4 094 095 100 106
1.QP 17 001 008 009 012 019 030 032 042 044 052 056 062 065 069 070 072 077
1.T 1 001
Chapter 2: Atoms and Elements
2.AP 1 090
2.CQ 1 114
2.QP 10 010 012 014 018 022 038 040 062 072 072.mrv
2.T 3 001 002 003
Chapter 3: Nuclear Chemistry
3.AP 9 052 054 056 060 062 063 064 066 072
3.QP 14 005 006 008 012 014 016 020 025 026 034 036 038 041 044
Chapter 4: Compounds and Their Bonds
4.QP 12 002 004 006 008 010 012 014 022 026 054 074 078
Chapter 5: Chemical Reactions and Quantities
5.AP 3 075 077 088
5.QP 17 002 008 010 012 014 015 028 030 032 034 036 038 040 044 046 048 058
Chapter 6: Energy and Matter
6.AP 2 058 065
6.CQ 1 080
6.QP 11 006 015 016 018 024 028 030 034 038 044 048
Chapter 7: Gases
7.AP 3 070 073 086
7.CQ 1 092
7.QP 14 002 004 006 008 012 014 018 023 027 028 034 048 052 054
Chapter 8: Solutions
8.AP 5 081 094 097 100 113
8.QP 15 002 005 010 014 019 026 030 036 039 044 046 048 052 064 068
Chapter 9: Chemical Equilibrium
9.AP 7 040 042 044 046 048 050 054
9.CQ 3 056 058 060
9.QP 1 032
9.UC 3 034 036 038
Chapter 10: Acids and Bases
10.QP 17 005 012 014 016 020 022 024 026 030 032 034 036 042 044 064 066 070
Chapter 11: Introduction to Organic Chemistry: Alkanes
11.QP 15 004 010 010.mrv 012 016 018 020 022 022.mrv 028 028.mrv 032 034 036 036.mrv
Chapter 12: Unsaturated Hydrocarbons
12.AP 5 042 042.mrv 048 048.mrv 054
12.QP 14 003 008 012 012.mrv 016 016.mrv 022 022.mrv 024 024.mrv 028 032 034 034.mrv
Chapter 13: Alcohols, Phenols, Thiols, and Ethers
13.AP 5 040 053 053.mrv 054 054.mrv
13.CQ 2 062 062.mrv
13.QP 7 004 008 013 026 026.mrv 030 030.mrv
Chapter 14: Aldehydes, Ketones, and Chiral Molecules
14.AP 5 054 058 062 062.mrv 064
14.QP 5 006 008 025 025.mrv 028
Chapter 15: Carbohydrates
15.AP 7 047 049 053 053.mrv 054 056 058
15.CQ 1 060
15.QP 17 001 003 005 006 008 011 013 017 017.mrv 019 021 026 026.mrv 028 035 037 040
Chapter 16: Carboxylic Acids and Esters
16.AP 2 046 046.mrv
16.QP 7 002 004 022 026 026.mrv 034 038
Chapter 17: Lipids
17.AP 1 082
17.QP 17 006 008 008.mrv 012 014 016 018 022 022.mrv 024 024.mrv 032 042 042.mrv 046 062 072
Chapter 18: Amines and Amides
18.AP 2 047 052
18.QP 9 004 006 008 016 018 018.mrv 024 034 034.mrv
Chapter 19: Amino Acids and Proteins
19.QP 14 002 004 006 006.mrv 008 012 014 014.mrv 016 016.mrv 018 022 024 032
Chapter 20: Enzymes and Vitamins
20.AP 3 056 058 072
20.QP 8 002 006 012 018 026 034 038 042
Chapter 21: Nucleic Acid and Protein Synthesis
21.AP 2 098 106
21.QP 10 008 016 018 022 026 028 042 048 052 064
Chapter 22: Metabolic Pathways for Carbohydrates
22.QP 10 002 006 012 014 016 018 022 024 028 034
Chapter 23: Metabolism and Energy Production
23.AP 5 058 068 074 082 090
23.QP 7 016 018 024 028 036 044 048
Chapter 24: Metabolic Pathways for Lipids and Amino Acids
24.AP 1 064
24.QP 8 002 008 014 026 032 038 044 056
Total 364