Chemistry: The Central Science 12th edition

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Theodore E. Brown, H. Eugene LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward
Publisher: Pearson Education


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  • Chapter 1: Introduction: Matter and Measurement
    • 1: Visualizing Concepts
    • 1: The Study of Chemistry
    • 1: Classifications of Matter (7)
    • 1: Properties of Matter
    • 1: Units of Measurement (7)
    • 1: Uncertainty in Measurement (5)
    • 1: Dimensional Analysis (8)
    • 1: Additional Exercises (9)
    • Extra Problems (11)
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 2: Atoms, Molecules, and Ions
    • 2: Visualizing Concepts
    • 2: The Atomic Theory of Matter (4)
    • 2: The Discovery of Atomic Structure
    • 2: The Modern View of Atomic Structure (8)
    • 2: Atomic Weights
    • 2: The Periodic Table (14)
    • 2: Molecules and Molecular Compounds
    • 2: Ions and Ionic Compounds
    • 2: Naming Inorganic Compounds (12)
    • 2: Some Simple Organic Compounds
    • 2: Additional Exercises (4)
    • Extra Problems
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 3: Stoichiometry: Calculations with Chemical Formulas and Equations
    • 3: Visualizing Concepts (1)
    • 3: Chemical Equations (4)
    • 3: Some Simple Patterns of Chemical Reactivity (4)
    • 3: Formula Weights (4)
    • 3: Avogadro's Number and the Mole (9)
    • 3: Empirical Formulas from Analyses (10)
    • 3: Quantitative Information from Balanced Equations (7)
    • 3: Limiting Reactants (7)
    • 3: Additional Exercises (9)
    • 3: Integrative Exercises (2)
    • Extra Problems (1)
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 4: Reactions in Aqueous Solution
    • 4: Visualizing Concepts
    • 4: General Properties of Aqueous Solutions (3)
    • 4: Precipitation Reactions (7)
    • 4: Acids, Bases, and Neutralization Reactions (7)
    • 4: Oxidation-Reduction Reactions (5)
    • 4: Concentrations of Solutions (13)
    • 4: Solution Stoichiometry and Chemical Analysis (8)
    • 4: Additional Exercises (3)
    • 4: Integrative Exercises (2)
    • Extra Problems (7)
    • WebAssign Answer Entry Tutorials

  • Chapter 5: Thermochemistry
    • 5: Visualizing Concepts
    • 5: The Nature of Energy (3)
    • 5: The First Law of Thermodynamics (3)
    • 5: Enthalpy (10)
    • 5: Enthalpies of Reaction
    • 5: Calorimetry (7)
    • 5: Hess's Law (1)
    • 5: Enthalpies of Formation (4)
    • 5: Foods and Fuels (5)
    • 5: Additional Exercises (2)
    • 5: Integrative Exercises
    • Extra Problems (4)
    • WebAssign Answer Entry Tutorials

  • Chapter 6: Electronic Structure of Atoms
    • 6: Visualizing Concepts
    • 6: The Wave Nature of Light (4)
    • 6: Quantized Energy and Photons (6)
    • 6: Line Spectra and the Bohr Model (10)
    • 6: The Wave Behavior of Matter
    • 6: Quantum Mechanics and Atomic Orbitals (3)
    • 6: Representations of Orbitals
    • 6: Many-Electron Atoms (5)
    • 6: Electron Configurations
    • 6: Electron Configurations and the Periodic Table
    • 6: Additional Exercises (6)
    • 6: Integrative Exercises (1)
    • Extra Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 7: Periodic Properties of the Elements
    • 7: Visualizing Concepts
    • 7: Development of the Periodic Table (2)
    • 7: Effective Nuclear Charge
    • 7: Sizes of Atoms and Ions (8)
    • 7: Ionization Energy (6)
    • 7: Electron Affinities
    • 7: Metals, Nonmetals, and Metalloids (4)
    • 7: Trends for Group 1A and Group 2A Metals (7)
    • 7: Trends for Selected Nonmetals
    • 7: Additional Exercises (1)
    • 7: Integrative Exercises (2)
    • Extra Problems (12)
    • WebAssign Answer Entry Tutorials

  • Chapter 8: Basic Concepts of Chemical Bonding
    • 8: Visualizing Concepts (1)
    • 8: Lewis Symbols and the Octet Rule (4)
    • 8: Ionic Bonding (9)
    • 8: Covalent Bonding (11)
    • 8: Bond Polarity and Electronegativity
    • 8: Drawing Lewis Structures (7)
    • 8: Resonance Structures
    • 8: Exceptions to the Octet Rule (2)
    • 8: Strengths of Covalent Bonds (5)
    • 8: Additional Exercises (5)
    • 8: Integrative Exercises (2)
    • Extra Problems (8)
    • WebAssign Answer Entry Tutorials (1)

  • Chapter 9: Molecular Geometry and Bonding Theories
    • 9: Visualizing Concepts
    • 9: Molecular Shapes (9)
    • 9: The VSEPR Model
    • 9: Molecular Shape and Molecular Polarity (6)
    • 9: Covalent Bonding and Orbital Overlap (2)
    • 9: Hybrid Orbitals
    • 9: Multiple Bonds (6)
    • 9: Molecular Orbitals (6)
    • 9: Period 2 Diatomic Molecules
    • 9: Additional Exercises (3)
    • 9: Integrative Exercises (1)
    • Extra Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 10: Gases
    • 10: Visualizing Concepts
    • 10: Characteristics of Gases (10)
    • 10: Pressure
    • 10: The Gas Laws (3)
    • 10: The Ideal-Gas Equation (9)
    • 10: Further Applications of the Ideal-Gas Equation (9)
    • 10: Gas Mixtures and Partial Pressures (6)
    • 10: The Kinetic-Molecular Theory of Gases (4)
    • 10: Molecular Effusion and Diffusion
    • 10: Real Gases: Deviations from Ideal Behavior (2)
    • 10: Additional Exercises (6)
    • 10: Integrative Exercises
    • Extra Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 11: Liquids and Intermolecular Forces
    • 11: Visualizing Concepts
    • 11: A Molecular Comparisons of Gases, Liquids, and Solids
    • 11: Intermolecular Forces (4)
    • 11: Select Properties of Liquids
    • 11: Phase Changes (6)
    • 11: Vapor Pressure (2)
    • 11: Phase Diagrams (1)
    • 11: Liquid Crystals (2)
    • 11: Additional Exercises (2)
    • 11: Integrative Exercises (2)
    • Extra Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 12: Solids and Modern Materials
    • 12: Visualizing Concepts
    • 12: Classifications of Solids (3)
    • 12: Structures of Solids (1)
    • 12: Metallic Solids (3)
    • 12: Metallic Bonding (1)
    • 12: Ionic Solids (1)
    • 12: Molecular Solids
    • 12: Covalent-Network Solids (2)
    • 12: Polymeric Solids (5)
    • 12: Nanomaterials (3)
    • 12: Additional Exercises (1)
    • 12: Integrative Exercises (4)
    • Extra Problems (15)
    • WebAssign Answer Entry Tutorials

  • Chapter 13: Properties of Solutions
    • 13: Visualizing Concepts
    • 13: The Solution Process (3)
    • 13: Saturated Solutions and Solubility (5)
    • 13: Factors Affecting Solubility
    • 13: Expressing Solution Concentration (16)
    • 13: Colligative Properties (11)
    • 13: Colloids
    • 13: Additional Exercises (2)
    • 13: Integrative Exercises
    • Extra Problems
    • WebAssign Answer Entry Tutorials

  • Chapter 14: Chemical Kinetics
    • 14: Visualizing Concepts
    • 14: Factors that Affect Reaction Rates (4)
    • 14: Reaction Rates
    • 14: Concentration and Rate Laws (7)
    • 14: The Change of Concentration with Time (4)
    • 14: Temperature and Rate (6)
    • 14: Reaction Mechanisms (3)
    • 14: Catalysis (2)
    • 14: Additional Exercises (7)
    • 14: Integrative Exercises (1)
    • Extra Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 15: Chemical Equilibrium
    • 15: Visualizing Concepts
    • 15: The Concept of Equilibrium (3)
    • 15: The Equilibrium Constant
    • 15: Understanding and Working with Equilibrium Constants
    • 15: Heterogeneous Equilibria
    • 15: Calculating Equilibrium Constants (3)
    • 15: Applications of Equilibrium Constants (10)
    • 15: Le Châtelier's Principle (2)
    • 15: Additional Exercises (10)
    • 15: Integrative Exercises
    • Extra Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 16: Acid-Base Equilibria
    • 16: Visualizing Concepts
    • 16: Acids and Bases: A Brief Review (5)
    • 16: Brønsted-Lowry Acids and Bases
    • 16: The Autoionization of Water (3)
    • 16: The pH Scale (5)
    • 16: Strong Acids and Bases (6)
    • 16: Weak Acids (8)
    • 16: Weak Bases (3)
    • 16: Relationship Between Ka and Kb (4)
    • 16: Acid-Base Properties of Salt Solutions
    • 16: Acid-Base Behavior and Chemical Structure (1)
    • 16: Lewis Acids and Bases (2)
    • 16: Additional Exercises (2)
    • 16: Integrative Exercises
    • Extra Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 17: Additional Aspects of Aqueous Equilibria
    • 17: Visualizing Concepts
    • 17: The Common-Ion Effect (2)
    • 17: Buffered Solutions (5)
    • 17: Acid-Base Titrations (8)
    • 17: Solubility Equilibria (8)
    • 17: Factors that Affect Solubility
    • 17: Precipitation and Separation of Ions (3)
    • 17: Qualitative Analysis for Metallic Elements (1)
    • 17: Additional Exercises (4)
    • 17: Integrative Exercises
    • Extra Problems (5)
    • WebAssign Answer Entry Tutorials

  • Chapter 18: Chemistry of the Environment
    • 18: Visualizing Concepts
    • 18: Earth's Atmosphere (6)
    • 18: Human Activities and Earth's Atmosphere (2)
    • 18: Earth's Water (4)
    • 18: Human Activities and Earth's Water (7)
    • 18: Green Chemistry
    • 18: Additional Exercises (5)
    • 18: Integrative Exercises (7)
    • Extra Problems (1)
    • WebAssign Answer Entry Tutorials

  • Chapter 19: Chemical Thermodynamics
    • 19: Visualizing Concepts
    • 19: Spontaneous Processes (3)
    • 19: Entropy and the Second Law of Thermodynamics (5)
    • 19: Molecular Interpretation of Entropy (5)
    • 19: Entropy Changes in Chemical Reactions (1)
    • 19: Gibbs Free Energy (10)
    • 19: Free Energy and Temperature
    • 19: Free Energy and the Equilibrium Constant (8)
    • 19: Additional Exercises (1)
    • 19: Integrative Exercises
    • Extra Problems (3)
    • WebAssign Answer Entry Tutorials

  • Chapter 20: Electrochemistry
    • 20: Visualizing Concepts
    • 20: Oxidation States and Oxidation-Reduction Reactions (2)
    • 20: Balancing Redox Equations (3)
    • 20: Voltaic Cells (1)
    • 20: Cell Potentials Under Standard Conditions (10)
    • 20: Free Energy and Redox Reactions (7)
    • 20: Cell Potentials Under Nonstandard Conditions (5)
    • 20: Batteries and Fuel Cells (2)
    • 20: Corrosion
    • 20: Electrolysis (4)
    • 20: Additional Exercises (3)
    • 20: Integrative Exercises
    • Extra Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 21: Nuclear Chemistry
    • 21: Visualizing Concepts
    • 21: Radioactivity (7)
    • 21: Patterns of Nuclear Stability (3)
    • 21: Nuclear Transmutations (4)
    • 21: Rates of Radioactive Decay (9)
    • 21: Detection of Radioactivity
    • 21: Energy Changes in Nuclear Reactions (5)
    • 21: Nuclear Power: Fission (4)
    • 21: Nuclear Power: Fusion
    • 21: Radiation in the Environment and Living System
    • 21: Additional Exercises (6)
    • 21: Integrative Exercises (2)
    • Extra Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 22: Chemistry of the Nonmetals
    • 22: Visualizing Concepts
    • 22: Periodic Trends and Chemical Reactions (4)
    • 22: Hydrogen (5)
    • 22: Group 8A: The Noble Gases
    • 22: Group 7A: The Halogens
    • 22: Oxygen (6)
    • 22: The Other Group 6A Elements: S, Se, Te, and Po
    • 22: Nitrogen (7)
    • 22: The Other Group 5A Elements: P, As, Sb, and Bi
    • 22: Carbon (4)
    • 22: The Other Group 4A Elements: Si, Ge, Sn, and Pb
    • 22: Boron
    • 22: Additional Exercises
    • 22: Integrative Exercises (4)
    • Extra Problems (2)
    • WebAssign Answer Entry Tutorials

  • Chapter 23: Transition Metals and Coordination Chemistry
    • 23: Visualizing Concepts
    • 23: The Transition Metals
    • 23: Transition Metal Complexes
    • 23: Common Ligands in Coordination Chemistry (1)
    • 23: Nomenclature and Isomerism in Coordination Chemistry (2)
    • 23: Color and Magnetism in Coordination Chemistry (5)
    • 23: Crystal-Field Theory
    • 23: Additional Exercises (4)
    • 23: Integrative Exercises (6)
    • Extra Problems (29)
    • WebAssign Answer Entry Tutorials

  • Chapter 24: The Chemistry of Life: Organic and Biological Chemistry
    • 24: Visualizing Concepts
    • 24: General Characteristics of Organic Molecules (2)
    • 24: Introduction to Hydrocarbons
    • 24: Alkenes, Alkynes, and Aromatic Hydrocarbons (5)
    • 24: Organic Functional Groups (6)
    • 24: Chirality in Organic Chemistry
    • 24: Introduction to Biochemistry
    • 24: Proteins (2)
    • 24: Carbohydrates (2)
    • 24: Lipids
    • 24: Nucleic Acids (1)
    • 24: Additional Exercises (4)
    • 24: Integrative Exercises (2)
    • Extra Problems (6)
    • WebAssign Answer Entry Tutorials

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Group Quantity Questions
Chapter 1: Introduction: Matter and Measurement
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Chapter 2: Atoms, Molecules, and Ions
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Chapter 3: Stoichiometry: Calculations with Chemical Formulas and Equations
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Chapter 4: Reactions in Aqueous Solution
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Chapter 5: Thermochemistry
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Chapter 6: Electronic Structure of Atoms
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Chapter 7: Periodic Properties of the Elements
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Chapter 8: Basic Concepts of Chemical Bonding
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Chapter 9: Molecular Geometry and Bonding Theories
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Chapter 10: Gases
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Chapter 11: Liquids and Intermolecular Forces
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Chapter 12: Solids and Modern Materials
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Chapter 13: Properties of Solutions
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Chapter 14: Chemical Kinetics
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Chapter 15: Chemical Equilibrium
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Chapter 16: Acid-Base Equilibria
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Chapter 17: Additional Aspects of Aqueous Equilibria
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Chapter 18: Chemistry of the Environment
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Chapter 19: Chemical Thermodynamics
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Chapter 20: Electrochemistry
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Chapter 21: Nuclear Chemistry
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Chapter 22: Chemistry of the Nonmetals
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Chapter 23: Transition Metals and Coordination Chemistry
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Chapter 24: The Chemistry of Life: Organic and Biological Chemistry
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