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Ch 12: Materials From Molecules

About This Chapter

Review of this chapter on materials from molecules can enhance your understanding of hydrogen bonding, molecular substance, and the octet rule. These brief lessons and quizzes can help you prepare for an exam or gauge your understanding of this subject.

Materials From Molecules - Chapter Summary

By going through these lessons, you can master key concepts related to materials from molecules. For instance, you'll quickly get up to speed on the VSEPR theory and molecule shapes. The chapter can also help you better understand covalent bonding and electron shells. After reviewing the lessons, you should be ready to:

  • Explain how molecules are constructed
  • Provide examples of molecular structures
  • Recall how the octet rules applies to electron energy levels
  • List different types of structural formulas
  • Differentiate between sigma and pi bonds
  • Explain how ionic character is determined
  • Discuss different intermolecular bonds
  • Recall how London dispersion forces are created

These convenient lessons can help you quickly grasp the concepts covered. A brief quiz is available to test your understanding of each lesson, and the quizzes can be printed for use as a helpful study tool. Use your personal Dashboard to track the lessons you've completed and your quiz results.

10 Lessons in Chapter 12: Materials From Molecules
Test your knowledge with a 30-question chapter practice test
What is a Molecule? - Structure & Models

1. What is a Molecule? - Structure & Models

Water is a molecule. Caffeine is a molecule. DNA is a (really big) molecule. Learn how molecules are constructed and modeled and explore the different types of models.

Molecular Substance: Definition & Properties

2. Molecular Substance: Definition & Properties

Hydrogen peroxide, water, and carbon dioxide all have something in common: They are examples of molecular substances. Discover what a molecular substance is, and learn about the different properties used to define these compounds.

The Octet Rule and Lewis Structures of Atoms

3. The Octet Rule and Lewis Structures of Atoms

Learn the octet rule and how it applies to electron energy levels. Identify valence electrons and learn how to determine them by looking at the periodic table. Also, discover how they pertain to the octet rule. Learn how to draw the Lewis diagram of an atom, and understand how it provides clues to chemical bonding.

Structural Formula: Definition & Examples

4. Structural Formula: Definition & Examples

Chemical compounds are made of atoms bonded together. The way the atoms are bonded together in a compound is shown by its structural formula. In this lesson, we will learn about the different types of structural formulas and look at an example for each formula.

Using Orbital Hybridization and Valence Bond Theory to Predict Molecular Shape

5. Using Orbital Hybridization and Valence Bond Theory to Predict Molecular Shape

You'll learn how to explain how shapes of molecules can be predicted using valence bond theory and hybridization. When finished, you'll understand the difference between sigma and pi bonds and how the VSEPR theory, along with the hybridization theory, helps predict the shape of a molecule.

Covalent Bonds: Predicting Bond Polarity and Ionic Character

6. Covalent Bonds: Predicting Bond Polarity and Ionic Character

Learn about covalent bonds and their two types: nonpolar covalent bonds and polar covalent bonds. Discover how to predict the type of bond that will form based on the periodic table. Learn what ionic character means and how to determine it.

VSEPR Theory & Molecule Shapes

7. VSEPR Theory & Molecule Shapes

In this lesson, you'll learn about the VSEPR theory and how it can be used to explain molecule shapes. Then, learn how to predict the shape of a molecule by applying the VSEPR theory to the Lewis dot structure.

Hydrogen Bonding, Dipole-Dipole & Ion-Dipole Forces: Strong Intermolecular Forces

8. Hydrogen Bonding, Dipole-Dipole & Ion-Dipole Forces: Strong Intermolecular Forces

Learn about intermolecular vs. intramolecular forces. Learn the different intermolecular bonds (including hydrogen bonding and dipole-dipole and ion-dipole forces), their strengths, and their effects on properties, such as boiling and melting points, solubility, and evaporation.

London Dispersion Forces (Van Der Waals Forces): Weak Intermolecular Forces

9. London Dispersion Forces (Van Der Waals Forces): Weak Intermolecular Forces

Learn how London dispersion forces are created and what effect they have on properties such as boiling and melting points. Discover this weak intermolecular force and how it is one of the Van der Waals forces.

Covalent Bonding and Electron Shells: Definitions, Relationship & the Octet Rule

10. Covalent Bonding and Electron Shells: Definitions, Relationship & the Octet Rule

Learn about the different electron shells of atoms as well as the octet rule for valence electrons and how that applies to covalent bonding. Discover the definition of covalent bonding and the relationships between atoms.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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