Conceptual Chemistry 2nd edition


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  • Chapter 1: Chemistry is a Science
    • 1: Chemistry is a Central Science Useful to Our Lives
    • 1: Science Is a Way of Understanding the Universe
    • 1: Scientists Measure Physical Quantities
    • 1: Mass Is How Much and Volume Is How Spacious
    • 1: Energy Is the Mover of Matter
    • 1: Temperature Is a Measure of How Hot-Heat It is Not
    • 1: The Phase of a Material Depends on the Motion of Its Particles
    • 1: Density Is the Ratio of Mass to Volume
    • 1: Exercises (17)
    • 1: Problems (3)

  • Chapter 2: Elements of Chemistry
    • 2: Matter has Physical and Chemical Properties
    • 2: Atoms Are the Fundamental Components of Elements
    • 2: Elements Can Combine to Form Compounds
    • 2: Most Materials Are Mixtures
    • 2: Chemists Classify Matter as Pure or Impure
    • 2: Elements Are Organized in the Periodic Table by Their Properties
    • 2: Exercises (14)

  • Chapter 3: Discovering the Atom and Subatomic Particles
    • 3: Chemistry Developed Out of Our Interest in Materials
    • 3: Lavoisier Laid the Foundation of Modern Chemistry
    • 3: Dalton Deduced That Matter Is Made of Atoms
    • 3: The Electron Was the Firs Subatomic Particle Discovered
    • 3: The Mass of an Atom is Concentrated in Its Nucleus
    • 3: The Atomic Nucleus Is Made of Protons and Neutrons
    • 3: Exercises (17)
    • 3: Problems (2)

  • Chapter 4: The Atomic Nucleus
    • 4: The Cathode Ray Led to the Discovery of Radioactivity
    • 4: Radioactivity Is a Natural Phenomenon
    • 4:Radioactivie Isotopes Are Useful as Tracers and for Medical Imaging
    • 4: Radioactivity Results from an Imbalance of Forces in the Nucleus
    • 4: A Radioactive Element Can Transmute to a Different Element
    • 4: The Shorter the Half-Life, the Greater the Radioactivity
    • 4: Isotopic Dating Measures the Age of a Material
    • 4: Nuclear Fission Is the Splitting of the Atomic nucleus
    • 4: Nuclear Energy Come from Nuclear Mass and Vice Versa
    • 4: Exercises (18)

  • Chapter 5: Atomic Models
    • 5: Models Help Us Visualize the Invisible World of Atoms
    • 5: Light Is a Form of Energy
    • 5: Atoms Can Be Identified by the Light They Emit
    • 5: Niels Bohr Used the Quantum Hypothesis
    • 5: Electrons Exhibit Wave Properties
    • 5: Energy-Level Diagrams Describe How Orbital Are Occupied
    • 5: Orbital of Similar Energies Can Be Grouped Into Shells
    • 5: The periodic Table Helps Us Predict Properties of Elements
    • 5: Exercises (17)

  • Chapter 6: Chemical Bonding and Molecular Shapes
    • 6: An Atomic Model Is Needed to Understand How Atoms Bond
    • 6: Atoms Can Lose or Gain Electrons to Become Ions
    • 6: Ionic Bonds Result from a Transfer of Electrons
    • 6: Covalent Bonds Result from a Sharing of Electrons
    • 6: Valence Electrons Determine Molecular Shape
    • 6: Polar Covalent Bonds Result from and Uneven Sharing of electrons
    • 6: Molecular Polarity Results from and Uneven Distribution of Electrons
    • 6: Exercises (16)

  • Chapter 7: Molecular Mixing
    • 7: Submicroscopic Particles Electrically Attract One Another
    • 7: A Solution is a Single-Phase Homogeneous Mixture
    • 7: Solubility is a Measure of How Well A Solute Dissolves
    • 7: Soap Works by Being Both Polar and Nonpolar
    • 7: Exercises (15)
    • 7: Problems (2)

  • Chapter 8: Those Incredible Water Molecules
    • 8: Water Molecules Form an Open Crystalline Structure in Ice
    • 8: Freezing and Melting go On at the Same Time
    • 8: The Behavior of Liquid Water Is the Result of the Stickiness of Water Molecules
    • 8: Water molecules Move Freely Between the Liquid and Gaseous Phases
    • 8: It Takes Lot of Energy to Change the Temperature of Liquid Water
    • 8: A Phase Change Requires the Input or Output of Energy
    • 8: Exercises (20)
    • 8: Problems (2)

  • Chapter 9: An Overview of Chemical Reactions
    • 9: Chemical Reactions Are Represented by Chemical Equations
    • 9: Chemists Use Relative Masses to Count Atoms and Molecules
    • 9: Reaction Rate Is Influenced by concentration and Temperature
    • 9: Catalysts Increase the Rate of Chemical Reactions
    • 9:Chemical Reactions Can Be Either Exothermic or Endothermic
    • 9: Entropy is a Measure of Dispersed Energy
    • 9: Exercises (19)
    • 9: Problems (4)

  • Chapter 10: Acids and Bases
    • 10: Acids Donate Protons, Bases, Accept Them
    • 10: Some Acids and Bases Are Stronger Than Others
    • 10: Solutions Can Be Acidic, Basic, or neutral
    • 10: Rainwater is Acidic and Ocean Water Is Basic
    • 10: Buffer Solutions Resist Changes in pH
    • 10: Exercises (14)
    • 10: Problems (3)

  • Chapter 11: Oxidation and Reduction
    • 11: Oxidation Is the Loss of Electrons and Reduction Is the Gain of Electrons
    • 11: Photography Works by Selective Oxidation and Reduction
    • 11: The Energy of Flowing Electrons Can Be Harnessed
    • 11: Oxygen Is Responsible for Corrosion and Combustion
    • 11: Exercises (13)

  • Chapter 12: Organic Compounds
    • 12: Hydrocarbons contain Only Carbon and Hydrogen
    • 12: Unsaturated Hydrocarbons contain Multiple Bonds
    • 12: Organic Molecules Are Classified by Functional Group
    • 12: Organic Molecules can Link to Form Polymers
    • 12: Exercises (15)

  • Chapter 13: Chemicals of Life
    • 13: Biomolecules Are Produced and Utilized in Cells
    • 13: Carbohydrates Give Structure and Energy
    • 13: Lipids Are Insoluble in Water
    • 13: Proteins Are Polymers of Amino Acids
    • 13: Nucleic Acids Code for Proteins
    • 13: Vitamins Are Organic, Minerals Are Inorganic
    • 13: Metabolism Is the Cycling of Biomolecules Through the Body
    • 13: The Food Pyramid Summarizes Healthful diet
    • 13: Exercises (16)

  • Chapter 14: The Chemistry of Drugs
    • 14: Drugs Are Classified by Safety, Social Acceptability, Origin, and Biological Activity
    • 14: The Lock-and-Key Model Guides Chemists in Synthesizing new Drugs
    • 14: Chemotherapy Cures the Host by Killing the Disease
    • 14: Some Drugs Either Block or mimic Pregnancy
    • 14: The Nervous System Is a Network of neurons
    • 14: Psychoactive Drugs Alter the Mind or Behavior
    • 14: Pain Relieves Inhibit the Transmission or Perception of pain
    • 14: Drugs for the Heart Open Blood Vessels or Alter hear Rate
    • 14: Exercises (12)

  • Chapter 15: Optimizing Food Production
    • 15: Humans Eat at All Trophic Levels
    • 15: Plants Require Nutrients
    • 15: Soil Fertility Is Determined by Soil Structure and Nutrient Retention
    • 15: Natural and Synthetic Fertilizers Help Restore Soil Fertility
    • 15: Pesticides Kill Insects, Weeds, and Fungi
    • 15: There Is Much to Learn from past Agricultural Practices
    • 15: High Agricultural Yields Can be Sustained with Proper Practices
    • 15: A Crop can Be Improved by Inserting a Gene from Another Species
    • 15: In Perspective
    • 15: Exercises (14)

  • Chapter 16: Fresh Water Resources
    • 16: Water Circulates Through the Hydrologic Cycle
    • 16: Collectively, We Consume Huge Amounts of Water
    • 16: Water Treatment Facilities Make Water Safe for Drinking
    • 16: Fresh Water can Be Made from Salt Water
    • 16: Human Activities Can Pollute Water
    • 16: Microorganisms in Water Alter Levels of Dissolved Oxygen
    • 16: Wastewater Is Processed by Treatment Facilities
    • 16: In Perspective
    • 16: Exercises (13)

  • Chapter 17: Air Resources
    • 17: The Earth's Atmosphere Is a Mixture of Gases
    • 17: Human Activities Have Increases Air Pollution
    • 17: Stratospheric Ozone Protects the Earth from Ultraviolet Radiation
    • 17: Air Pollution May Result in Global Warming 21]
    • 17: Exercises (10)
    • 17: Problems (2)

  • Chapter 18: Material Resources
    • 18: Paper is Made of Cellulose Fibers
    • 18: The Development of Plastics Involved Experimentation and Discovery
    • 18: Metals Come from the Earth's Limited Supply of Ores
    • 18: Metal-Containing Compounds Can Be Converted to Metals
    • 18: Glass Is Made Primarily of Silicates
    • 18: Ceramics Are Hardened with Heat
    • 18: Composites Combine Fibers and a Thermoset Medium
    • 18: Exercises (12)

  • Chapter 19: Energy Resources
    • 19: Electricity Is a Convenient Form of Energy
    • 19: Fossil Fuels Are a Widely Used but Limited Energy Source
    • 19: There Are Two Forms of Nuclear Energy
    • 19: What Are Sustainable Energy Sources?
    • 19: Water can Be Used to Generate Electricity
    • 19: Biomass Is Chemical Energy
    • 19: Energy Can Be Harnessed from Sunlight
    • 19: Our Future Economy Should Be Based on hydrogen
    • 19: In Perspective
    • 19: Exercises (13)
    • 19: Problems (1)

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
E - Exercise
P - Problem


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


Group Quantity Questions
Chapter 1: Chemistry is a Science
1.E 17 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33
1.P 3 01 03 05
Chapter 2: Elements of Chemistry
2.E 14 01 03 05 07 09 11 13 15 17 19 21 23 25 27
Chapter 3: Discovering the Atom and Subatomic Particles
3.E 17 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33
3.P 2 01 03
Chapter 4: The Atomic Nucleus
4.E 18 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35
Chapter 5: Atomic Models
5.E 17 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33
Chapter 6: Chemical Bonding and Molecular Shapes
6.E 16 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31
Chapter 7: Molecular Mixing
7.E 15 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29
7.P 2 01 03
Chapter 8: Those Incredible Water Molecules
8.E 20 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
8.P 2 01 03
Chapter 9: An Overview of Chemical Reactions
9.E 19 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37
9.P 4 01 03 05 07
Chapter 10: Acids and Bases
10.E 14 01 03 05 07 09 11 13 15 17 19 21 23 25 27
10.P 3 01 03 05
Chapter 11: Oxidation and Reduction
11.E 13 01 03 05 07 09 11 13 15 17 19 21 23 25
Chapter 12: Organic Compounds
12.E 15 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29
Chapter 13: Chemicals of Life
13.E 16 01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31
Chapter 14: The Chemistry of Drugs
14.E 12 01 03 05 07 09 11 13 15 17 19 21 23
Chapter 15: Optimizing Food Production
15.E 14 01 03 05 07 09 11 13 15 17 19 21 23 25 27
Chapter 16: Fresh Water Resources
16.E 13 01 03 05 07 09 11 13 15 17 19 21 23 25
Chapter 17: Air Resources
17.E 10 01 03 05 07 09 11 13 15 17 19
17.P 2 01 03
Chapter 18: Material Resources
18.E 12 01 03 05 07 09 11 13 15 17 19 21 23
Chapter 19: Energy Resources
19.E 13 01 03 05 07 09 11 13 15 17 19 21 23 25
19.P 1 01
Total 304