Ch 9: Chemical Bonds & Reactions - ORELA Middle Grades General Science

About This Chapter

Take a look at this chapter on chemical bonds and reactions in preparation for the ORELA Middle Grades General Science exam. We include a number of informative video lessons as well as practice quizzes and a chapter exam to test your understanding.

ORELA Middle Grades General Science: Chemical Bonds & Reactions - Chapter Summary

Get ready for questions about chemical bonds and reactions on the ORELA Middle Grades General Science exam with these study resources. You'll cover topics like the laws of thermodynamics, ionic compounds, acids and bases, and redox reactions. You'll also take a look at the following:

  • Covalent, ionic, polar covalent, and hydrogen bonds
  • Writing and balancing chemical reactions
  • Dehydration and hydrolysis
  • Ionic compounds
  • Catabolism and anabolism
  • Buffers, weak acids, and weak bases

Brush up on essentials such as how matter likes to behave in a given set of circumstances with our fun videos. Watch the lessons on the topics you need to review and skip the ones you don't. Have a question for us? Use the ask-an-expert feature to get answers on any lesson topic you're confused on.

12 Lessons in Chapter 9: Chemical Bonds & Reactions - ORELA Middle Grades General Science
Test your knowledge with a 30-question chapter practice test
Chemical Bonds I: Covalent

1. Chemical Bonds I: Covalent

Mom always said that sharing is caring. This lesson will explore how electrons affect the chemical reactivity of atoms and specifically the merits of sharing electrons.

Chemical Bonds II: Ionic

2. Chemical Bonds II: Ionic

Did you know that the scientific name for table salt is sodium chloride? Find out how sodium and chlorine atoms come together to form your favorite seasoning.

Chemical Bonds III: Polar Covalent

3. Chemical Bonds III: Polar Covalent

Are you confused about how you can tell what kind of bond two atoms will form? This lesson will help you understand the difference between polar and nonpolar covalent bonds as well as how to predict how two atoms will interact.

Chemical Bonds IV: Hydrogen

4. Chemical Bonds IV: Hydrogen

This lesson defines and discusses important concepts behind hydrogen bonding. You'll learn when and why these bonds occur and which atoms are often involved.

The Laws of Thermodynamics

5. The Laws of Thermodynamics

Learn about the first and second laws of thermodynamics. Find out how energy is generated, how it converts from one form to another, and what happens to energy in a closed system.

Basic Properties of Chemical Reactions

6. Basic Properties of Chemical Reactions

Learn how about the various components of a chemical reaction, and how those components function. Use this lesson to understand the basic properties of different kinds of chemical reactions.

Redox (Oxidation-Reduction) Reactions: Definitions and Examples

7. Redox (Oxidation-Reduction) Reactions: Definitions and Examples

This short video will explain oxidation-reduction reactions, or redox reactions for short. The focus is on how electrons are transferred during redox reactions. Learn some neat mnemonic devices to help you remember when an atom is oxidizing or reducing.

Hydrolysis and Dehydration: Definitions & Examples

8. Hydrolysis and Dehydration: Definitions & Examples

Water is an important component of cellular processes. Two of these processes, dehydration and hydrolysis, help your body build large molecules from small ones and break down large ones into usable components.

What Are Ionic Compounds? - Definition, Examples & Reactions

9. What Are Ionic Compounds? - Definition, Examples & Reactions

Ionic compounds are a common, yet special type of chemical compound. In this video lesson, you will learn about their formation and structure and see examples of compounds formed by ions.

Anabolism and Catabolism: Definitions & Examples

10. Anabolism and Catabolism: Definitions & Examples

Metabolism breaks down large molecules like food into usable energy. This energy drives bodily processes critical to survival. In this video lesson, you will learn about the two forms of metabolism that break down and build up molecules and see examples of each.

Acids and Bases

11. Acids and Bases

Have you ever wondered how we measure the acidity of liquids? Check out this lesson to see how acids and bases are measured on a pH scale and how they relate to neutral solutions, such as water.

Weak Acids, Weak Bases, and Buffers

12. Weak Acids, Weak Bases, and Buffers

This lesson covers both strong and weak acids and bases, using human blood as an example for the discussion. Other concepts discussed included conjugate acids and bases, the acidity constant, and buffer systems within the blood.

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.
Not Taken

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Other Chapters

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