Ch 6: Praxis Biology & General Science: Bonding & Organic Molecules

About This Chapter

Allow us to explain advanced chemical bonding concepts. Video lessons and self-assessment quizzes can provide you with the material you need to take the Praxis II Biology and General Science test.

Praxis Biology and General Science: Chemistry Review: Bonding II - Chapter Summary

The video lessons in the chapter explore different forms of bonding, such as hydrogen bonding, metallic bonding and intramolecular bonding. The information contained in these lessons can help you prepare for the Praxis II Biology and General Science test. You'll learn about the following concepts before you take the exam:

  • Defining the VSEPR theory
  • Understanding hydrogen bonding
  • Working with London dispersion forces
  • Using orbital hybridization and valence bond theory to predict molecular shape
  • Reading diagrams of molecular orbitals
  • Explaining why metals are good electrical conductors
  • Identifying organic and inorganic macromolecules
  • Naming and grouping organic molecules
  • Differentiating between alkanes, alkenes, aromatic hydrocarbons and isomers

Experienced instructors go over each topic through short and interactive video lessons. You can navigate through the site quickly by using links to key terms and definitions. You can also find self-assessment quizzes and lesson transcripts at the end of each chapter.

Praxis Biology and General Science: Chemistry Review: Bonding II Objectives

The Praxis II Biology and General Science test is designed to gauge your ability to teach biology or general science at the secondary school level. Questions on chemical bonds are located in the molecular and cellular biology section of the exam, and this portion accounts for about 15% of all questions. The chapter's quizzes were structured to specifically resemble the actual format of the Praxis II test.

This exam is entirely multiple choice and consists of 120 questions with a 2-hour time limit. The test categories on the Praxis II Biology and General Science test are as follows: history and methodology of science, diversity of life, molecular and cellular biology, evolution and genetics, earth and space science, ecology, chemistry and physics.

9 Lessons in Chapter 6: Praxis Biology & General Science: Bonding & Organic Molecules
Test your knowledge with a 30-question chapter practice test
VSEPR Theory & Molecule Shapes

1. 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

2. 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

3. 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.

Using Orbital Hybridization and Valence Bond Theory to Predict Molecular Shape

4. 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.

Molecular Orbital Theory: Tutorial and Diagrams

5. Molecular Orbital Theory: Tutorial and Diagrams

Learn how to sketch the overlap of orbitals to form sigma and pi bonds. Use the molecular orbital theory to determine bond order. Discover how bond order affects bond strength and bond energy.

Metallic Bonding: The Electron-Sea Model & Why Metals Are Good Electrical Conductors

6. Metallic Bonding: The Electron-Sea Model & Why Metals Are Good Electrical Conductors

Learn why metallic bonding is called the electron sea model. Discover why metals bond the way they do and why they are shiny, malleable and conduct electricity well.

Intramolecular Bonding and Identification of Organic and Inorganic Macromolecules

7. Intramolecular Bonding and Identification of Organic and Inorganic Macromolecules

Understand what a macromolecule is and be able to identify both organic and inorganic macromolecules. Organic molecules include proteins, lipids, carbohydrates and nucleic acids.

Organic Molecules: Alkanes, Alkenes, Aromatic Hydrocarbons and Isomers

8. Organic Molecules: Alkanes, Alkenes, Aromatic Hydrocarbons and Isomers

Learn more about carbon and hydrogen and see how these atoms come together to form distinct molecules. Also, study the difference between saturated and unsaturated molecules.

Functional Groups in Organic Molecules

9. Functional Groups in Organic Molecules

Learn what an organic compound is and how their functional groups affect them. Identify the different types of functional groups including alcohols, alkyl halides, ketones, aldehydes, ethers, carboxylic acids and esters.

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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