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Ch 20: Praxis Middle School Science: Oxidation Reduction

About This Chapter

Our expert instructors have created video lessons and practice quizzes that will help you prepare for questions about oxidation and reduction on the Praxis Middle School Science test. We'll have you ready in no time!

Praxis Middle School Science: Oxidation Reduction - Chapter Summary

If you're anticipating a career teaching science to middle schoolers, you may have to take the Praxis Middle School Science test used by many states for teacher certification and endorsement. We can help you prepare for questions about oxidation and reduction (redox) that you will likely encounter on this test. We have instructors who are science experts and love to teach. They've put together brief, easy to navigate and thorough video lessons in this chapter for you. They'll guide you through redox topics such as:

  • Examples of oxidation and reduction reactions
  • Recognition of oxidizing and reducing agents
  • How to predict products of single displacement reactions
  • Electrochemistry
  • Half-cell reactions with cathodes and anodes
  • How to balance redox and combustion reactions

Each lesson is conveniently followed by a short, multiple-choice practice quiz. Be sure to complete these to confirm your comprehension and retention of the material. We know you want to feel confident about your preparation when you arrive on test day!

Objectives for the Praxis Middle School Science: Oxidation Reduction chapter

Many states use the Praxis Middle School Science test for teacher certification or endorsement. It is a computer-based test of 125 selected-response (e.g. multiple-choice) questions. The test is sectioned into 6 content categories. Questions that test your ability to use formulas to identify, describe and balance combustion and oxidation reaction equations are likely to be found in the 3rd content category, Physical Sciences, which accounts for about 22% of the test.

We know you want to breeze through this test so you can put it in the past and get started on your teaching career! We'd love the opportunity to help you do that!

7 Lessons in Chapter 20: Praxis Middle School Science: Oxidation Reduction
Test your knowledge with a 30-question chapter practice test
Reduction in Chemistry: Definition & Overview

1. Reduction in Chemistry: Definition & Overview

When atoms are greedy for electrons, they steal them from other atoms. This reduces their charge. You can see the effects of reduction in the world around you. Learn more about reduction in chemistry and see some examples of it.

Redox (Oxidation-Reduction) Reactions: Definitions and Examples

2. 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.

Balancing Redox Reactions and Identifying Oxidizing and Reducing Agents

3. Balancing Redox Reactions and Identifying Oxidizing and Reducing Agents

Learn how to identify an oxidizing agent and a reducing agent and how the loss or gain of electrons applies to each one. Learn the relationship between an oxidized or reduced substance and the oxidizing or reducing agent associated with it. Discover what steps to take to balance a redox reaction.

The Activity Series: Predicting Products of Single Displacement Reactions

4. The Activity Series: Predicting Products of Single Displacement Reactions

Discover what a single replacement reaction is and how to identify it. Learn what chemical activity is, how that applies to an activity series table and how to predict the product of a single replacement reaction by referring to the activity series.

Electrochemical Cells and Electrochemistry

5. Electrochemical Cells and Electrochemistry

Learn to identify the parts of and be able to describe an electrochemical cell, including the electrolyte, electrodes, anodes, and cathodes. Learn how to make a homemade lemon battery and how to diagram an electrochemical cell that will light a light bulb.

Cathode and Anode Half-Cell Reactions

6. Cathode and Anode Half-Cell Reactions

Learn how to write electrode half-reactions for cathodes and anodes. Discover how to calculate cell voltage potential when given a table of standard electrode potentials. Learn how to prevent corrosion using redox concepts and how to protect metal by cathodic protection.

Writing and Balancing Combustion Reactions

7. Writing and Balancing Combustion Reactions

Discover what a combustion reaction is as well as what reactants are needed and what products are produced. Learn to write and balance a combustion reaction. Through the concepts of bond energies, learn how to explain why combustion reactions are largely exothermic.

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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