<meta http-equiv="refresh" content="1; url=/nojavascript/"> Oxidation Reduction Reactions | CK-12 Foundation
Skip Navigation
You are reading an older version of this FlexBook® textbook: CK-12 Chemistry - Basic Go to the latest version.

Chapter 22: Oxidation Reduction Reactions

Difficulty Level: Basic Created by: CK-12

Have you ever seen someone breathe into a device like this? This person is breathing into a breathalyzer, a device used to detect the presence of ethanol (an alcohol) in a person’s breath. One version of the breathalyzer works by measuring the color change of a solution of the dichromate ion. In the presence of ethanol, the solution changes from orange to green as the dichromate ion is converted to a chromium(III) ion. The extent of the color change is then related to actual blood-alcohol content. The device is very accurate, because the chemical reaction on which the device is based is very predictable. This is an example of an oxidation-reduction reaction.

Courtesy of Senior Airman Natasha Stannard, US Air Force. commons.wikimedia.org/wiki/File:Breathalyzer_study.jpg. Public Domain.

Chapter Outline

Chapter Summary

Image Attributions


Difficulty Level:



Date Created:

Sep 09, 2013

Last Modified:

Nov 24, 2014
Files can only be attached to the latest version of None
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original

Original text