WebAssign Companion to Chang - Gen. Chem. Essential Concepts 7/e 1st edition

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  • Chapter T: WebAssign Answer Templates and Tutorials
    • T: WebAssign Answer Templates and Tutorials

  • Chapter 1: Introduction to Chemistry
    • 1.1: Studying Chemistry
    • 1.2: The Scientific Method
    • 1.3: Matter
    • 1.4: Physical and Chemical Properties
    • 1.5: Measurement and Units
    • 1.6: Scientific Notation and Significant Figures
    • 1.7: Dimensional Analysis
    • 1: Concept Mastery
    • 1: Exercises
    • 1: Stand Alone Tutorials

  • Chapter 2: Atoms, Compounds, and the Periodic Table
    • 2.1: Dalton's Atomic Theory
    • 2.2: Atomic Structure
    • 2.3: Mass, the Number of Subatomic Particles, and Isotopes
    • 2.4: The Periodic Table
    • 2.5: Molecules and Ions
    • 2.6: Writing Chemical Formulas
    • 2.7: Chemical Nomenclature
    • 2.8: Introduction to Organic Chemistry
    • 2: Concept Mastery
    • 2: Exercises
    • 2: Stand Alone Tutorials

  • Chapter 3: Stoichiometry
    • 3.1: Average Atomic Mass
    • 3.2: Converting Between Mass and Moles
    • 3.3: Formula Mass
    • 3.4: Mass Spectrometry
    • 3.5: Percent Composition
    • 3.6: Determination of Empirical Formula by Combustion
    • 3.7: Writing and Balancing Chemical Equations
    • 3.8: Determining the Amount of Reactant and Product
    • 3.9: Limiting and Excess Reagents
    • 3.10: Percent Yield
    • 3: Concept Mastery
    • 3: Exercises
    • 3: Stand Alone Tutorials

  • Chapter 4: Chemical Reactions in Aqueous Solution
    • 4.1: Aqueous Solutions
    • 4.2: Precipitation Reactions
    • 4.3: Acid-Base Reactions
    • 4.4: Redox Reactions
    • 4.5: Molarity and Dilutions
    • 4.6: Stoichiometry in Solutions
    • 4: Concept Mastery
    • 4: Exercises
    • 4: Stand Alone Tutorials

  • Chapter 5: Gases
    • 5.1: Gaseous Substances
    • 5.2: Gas Pressure
    • 5.3: The Empirical Gas Laws
    • 5.4: Ideal Gases
    • 5.5: Mixtures of Gases
    • 5.6: Kinetic Molecular Theory
    • 5.7: Non-ideal Gases
    • 5: Concept Mastery
    • 5: Exercises
    • 5: Stand Alone Tutorials

  • Chapter 6: Thermochemistry
    • 6.1: Energy
    • 6.2: Energy Changes
    • 6.3: Overview of Thermodynamics
    • 6.4: Enthalpy
    • 6.5: Calorimetry
    • 6.6: Standard Enthalpies of Formation and Reaction
    • 6: Concept Mastery
    • 6: Exercises
    • 6: Stand Alone Tutorials

  • Chapter 7: Quantum Theory and Electron Configurations
    • 7.1: Development of Quantum Theory
    • 7.2: The Photoelectric Effect
    • 7.3: The Bohr Model
    • 7.4: Particle-Wave Duality
    • 7.5: Quantum Mechanics
    • 7.6: Quantum Numbers
    • 7.7: Atomic Orbitals
    • 7.8: Electron Configuration of Atoms
    • 7.9: The Aufbau Principle
    • 7: Concept Mastery
    • 7: Exercises
    • 7: Stand Alone Tutorials

  • Chapter 8: Periodic Trends
    • 8.1: The History of the Periodic Table
    • 8.2: Electron Configurations and the Periodic Table
    • 8.3: Periodic Trends in Physical Properties
    • 8.4: Ionization Energy
    • 8.5: Electron Affinity
    • 8.6: Periodic Trends in Chemical Properties
    • 8: Concept Mastery
    • 8: Exercises
    • 8: Stand Alone Tutorials

  • Chapter 9: Compounds, Bonding, Ionic and Covalent
    • 9.1: Lewis Dot Symbols
    • 9.2: Bonding in Ionic Compounds
    • 9.3: Lattice Energy
    • 9.4: Bonding in Covalent Molecules
    • 9.5: Electronegativity
    • 9.6: Lewis Structures
    • 9.7: Formal Charge
    • 9.8: Resonance
    • 9.9: Octet Rule Exceptions
    • 9.10: Bond Enthalpy
    • 9: Concept Mastery
    • 9: Exercises
    • 9: Stand Alone Tutorials

  • Chapter 10: Molecular Geometry, Hybridization, and Bonding
    • 10.1: Molecular and Electron Domain Geometry
    • 10.2: Molecular Polarity
    • 10.3: Valence Bond Theory
    • 10.4: Atomic Orbital Hybridization
    • 10.5: Sigma and Pi Bonding
    • 10.6: Molecular Orbitals
    • 10: Concept Mastery
    • 10: Exercises
    • 10: Stand Alone Tutorials

  • Chapter 11: Organic Chemistry
    • 11.1: Classification and Naming of Organic Compounds
    • 11.2: Alkanes, Alkenes, and Alkynes
    • 11.3: Aromatic Compounds
    • 11.4: Functional Groups
    • 11.5: Chirality
    • 11: Concept Mastery
    • 11: Exercises
    • 11: Stand Alone Tutorials

  • Chapter 12: Liquids and Solids
    • 12.1: Kinetic Molecular Theory
    • 12.2: Intermolecular Forces
    • 12.3: Characteristics of Liquids
    • 12.4: Lattice Structure of Crystalline Solids
    • 12.5: Crystal Classification
    • 12.6: Phase Transitions
    • 12.7: Phase Diagrams
    • 12: Concept Mastery
    • 12: Exercises
    • 12: Stand Alone Tutorials

  • Chapter 13: Solution Chemistry
    • 13.1: Solution Classification
    • 13.2: Solubility on the Molecular Level
    • 13.3: Molarity, Molality, and Percent by Mass
    • 13.4: Temperature and Solubility
    • 13.5: Pressure and Solubility
    • 13.6: Colligative Properties
    • 13: Concept Mastery
    • 13: Exercises
    • 13: Stand Alone Tutorials

  • Chapter 14: Kinetics
    • 14.1: Reaction Rates
    • 14.2: Rate Laws
    • 14.3: Effect of Reactant Concentration on Time
    • 14.4: Activation Energy and the Effect of Rate Constant on Temperature
    • 14.5: Reaction Mechanisms
    • 14.6: Catalysts
    • 14: Concept Mastery
    • 14: Exercises
    • 14: Stand Alone Tutorials

  • Chapter 15: Equilibrium
    • 15.1: Introduction to Equilibrium
    • 15.2: Equilibrium Constant and Expression
    • 15.3: Utilizing the Equilibrium Constant
    • 15.4: Le Châtelier's Principle
    • 15: Concept Mastery
    • 15: Exercises
    • 15: Stand Alone Tutorials

  • Chapter 16: Acids and Bases
    • 16.1: Brønsted Acids and Bases
    • 16.2: Autoionization of Water
    • 16.3: pH and pOH
    • 16.4: Conjugate Acid-Base Pairs
    • 16.5: Weak Acids
    • 16.6: Weak Bases
    • 16.7: Acid- and Base-dissociation Constants
    • 16.8: Effect of Molecular Structure on Acid Strength
    • 16.9: Acidic and Basic Salt Solutions
    • 16.10: Acid-Base Properties of Oxides
    • 16.11: Lewis Acids and Bases
    • 16: Concept Mastery
    • 16: Exercises
    • 16: Stand Alone Tutorials

  • Chapter 17: Equilibria: Acid-Base and Solubility
    • 17.1: Homogeneous and Heterogeneous Equilibria
    • 17.2: Buffers
    • 17.3: Acid-Base Titrations
    • 17.4: Acid-Base Indicators
    • 17.5: Solubility Equilibria
    • 17.6: Relationship Between the Common Ion Effect and Solubility
    • 17.7: The Effect of Complex Ion Formation on Solubility
    • 17.8: Qualitative Analysis for the Presence of Metal Ions
    • 17: Concept Mastery
    • 17: Exercises
    • 17: Stand Alone Tutorials

  • Chapter 18: Thermodynamics
    • 18.1: Overview of the Laws of Thermodynamics
    • 18.2: Spontaneous and Nonspontaneous Processes
    • 18.3: Entropy
    • 18.4: Predicting Spontaneity
    • 18.5: Free Energy
    • 18.6: Free Energy and Equilibrium
    • 18.7: Thermodynamics in Biological Systems
    • 18: Concept Mastery
    • 18: Exercises
    • 18: Stand Alone Tutorials

  • Chapter 19: Electrochemistry
    • 19.1: Balancing Redox Reactions in Acidic or Basic Solution
    • 19.2: Voltaic Cells
    • 19.3: Standard Electrode Potentials
    • 19.4: Relationships Between Cell Potential, Free Energy, and Equilibrium Constant
    • 19.5: Effect of Concentration on Cell Potential and Concentration Cells
    • 19.6: Batteries
    • 19.7: Corrosion
    • 19.8: Electrolytic Cells
    • 19.9: Purifying and Extracting Metals
    • 19: Concept Mastery
    • 19: Exercises
    • 19: Stand Alone Tutorials

  • Chapter 20: Transition Metals and Coordination Chemistry
    • 20.1: The Transition Metals
    • 20.2:Coordination Chemistry
    • 20.3: Structure of Coordination Compounds
    • 20.4: Bonding in Coordination Compounds
    • 20.5: Ligand Exchange Reactions
    • 20.6: Biological Coordination Compounds
    • 20: Concept Mastery
    • 20: Exercises
    • 20: Stand Alone Tutorials

  • Chapter 21: Nuclear Chemistry
    • 21.1: Nuclear Reactions
    • 21.2: Nuclear Stability
    • 21.3: Radioactive Decay
    • 21.4: Nuclear Transmutation
    • 19.5: Nuclear Fission
    • 21.6: Nuclear Fusion
    • 21.7: Applications of Radioisotopes
    • 21.8: Effects of Radiation on Biological Systems
    • 21: Concept Mastery
    • 21: Exercises
    • 21: Stand Alone Tutorials

  • Chapter 22: Organic Polymers
    • 22.1: Characteristics of Polymers
    • 22.2: Synthetic Organic Polymers
    • 22.3: Proteins
    • 22.4: Nucleic Acids
    • 22: Concept Mastery
    • 22: Exercises
    • 22: Stand Alone Tutorials

  • Chapter FE: Final Exam Questions
    • FE: Final Exam Questions
    • FE: Stand Alone Tutorials

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.

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Group Quantity Questions
Chapter 1: Introduction to Chemistry
1 0  
Chapter 2: Atoms, Compounds, and the Periodic Table
2 0  
Chapter 3: Stoichiometry
3 0  
Chapter 4: Chemical Reactions in Aqueous Solution
4 0  
Chapter 5: Gases
5 0  
Chapter 6: Thermochemistry
6 0  
Chapter 7: Quantum Theory and Electron Configurations
7 0  
Chapter 8: Periodic Trends
8 0  
Chapter 9: Compounds, Bonding, Ionic and Covalent
9 0  
Chapter 10: Molecular Geometry, Hybridization, and Bonding
10 0  
Chapter 11: Organic Chemistry
11 0  
Chapter 12: Liquids and Solids
12 0  
Chapter 13: Solution Chemistry
13 0  
Chapter 14: Kinetics
14 0  
Chapter 15: Equilibrium
15 0  
Chapter 16: Acids and Bases
16 0  
Chapter 17: Equilibria: Acid-Base and Solubility
17 0  
Chapter 18: Thermodynamics
18 0  
Chapter 19: Electrochemistry
19 0  
Chapter 20: Transition Metals and Coordination Chemistry
20 0  
Chapter 21: Nuclear Chemistry
21 0  
Chapter 22: Organic Polymers
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Total 0