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Redox Reactions

An Empirically-Based and Logical Approach to Teaching the Oxidation Number Concept

Michael Jansen | Sun, 08/24/2025 - 12:32

Oxidation-Reduction (Redox) reactions, also referred to as electron-transfer reactions, are common. So common, in fact, that four of the five general reaction types studied in Honors Chemistry involve the transfer of electrons. In this post, lead contributor Michael Jansen outlines three approaches to teaching electron transfer and Redox reactions. 

 

The Pumpkinator

Tom Kuntzleman | Mon, 10/17/2022 - 17:09

This Pumpkinator is a fantastic orange-to-blue-to-orange chemical reaction that will make a great addition to your Halloween-themed chemistry demonstrations.

Too Hot to Handle? Hydrogen Reacts with Oxygen on Palladium Foil

Dean Campbell | Thu, 04/28/2022 - 20:50

The reaction of hydrogen and oxygen gases to form water is well known to be an exothermic reaction. That reaction can occur by first absorbing the hydrogen into palladium metal, and then placing the resulting palladium hydride into contact with oxygen in the air. Infrared and visible light videos were recorded for this process involving palladium foil, and the Green Chemistry and safety aspects of these activities are considered.

Lithium Battery Flame

Tom Kuntzleman | Mon, 09/27/2021 - 16:42

Inspired by a recent article in the Journal of Chemical Education, Tom Kuntzleman attempted to extract lithium from a coin battery, and to use the extracted lithium to produce a pink flame.