ChemEd X contributors offer their ideas and opinions on a broad spectrum of topics pertaining to chemical education.

Blogs at ChemEd X reflect the opinions of the contributors and are open to comments. Only selected contributors blog at ChemEd X. If you would like to blog regularly at ChemEd X, please use our Contribution form to request an invitation to do so from one of our editors.

by Tom Kuntzleman
Mon, 05/09/2022 - 08:13

Can Alkaline Water Change the pH of your body? We use chemistry to put this claim to the test!

Comments: 5
Recent activity: 11 months 1 week ago
by Joseph Lomax
Sun, 05/01/2022 - 14:50

In this blog the author describes how three components of a water tower reservoir is analogous to an acid-base buffer system.

Recent activity: 4 months 2 weeks ago
by 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.

Recent activity: 2 years 1 month ago
by Chad Husting
Tue, 04/19/2022 - 14:29

It can be frustrating when students are always on their phones. What if we meet them where they are at with some chemistry content? This is one teacher's journey into the world of Tik Tok.

Recent activity: 2 years 1 month ago
by Tom Kuntzleman
Tue, 04/19/2022 - 11:44

The "Two-Faced" thionin reaction involves causing a purple solution to fade to colorless by shining light on the solution. I wondered if it could be demonstrated the color of light that caused this transition.


Recent activity: 11 months 1 week ago
by Melissa Hemling
Fri, 04/08/2022 - 10:40

Here is a quick way to use DocHub to update the formatting of the older AP Chemistry Free Response questions so it matches the new (2021) format!

Recent activity: 4 months 2 weeks ago
by Dean Campbell
Wed, 04/06/2022 - 13:39

Flat, symmetrical molecules can be modeled by folding a sheet of paper, cutting patterns into the folded structure, and unfolding to produce the flat paper models. The finished models resemble paper snowflakes, but have a variety of rotational symmetries. Template patterns for several molecules are available for download in the Supporting Information.

Recent activity: 2 years 1 month ago
by Philip Root
Mon, 04/04/2022 - 20:05

Please welcome Phil Root as a new ChemEd X two-year college (2YC) lead contributor. This is his first blog. Enjoy...

Recent activity: 4 months 2 weeks ago
Mon, 04/04/2022 - 10:00

A kaleidocycle is presented in which the entire periodic table has been collected. In this three-dimensional figure are the elements organized in four blocks according to their final electronic structure. It is intended that students with this playful figure actively participate in classes by rotating their kaleidocycle looking for the groups or elements that are being studied. The entire periodic table fits in one palm of their hands. It is also a didactic device because students only focus their attention on one block or group of elements from the entire Periodic Table. It can be achieved a more entertaining, motivating and exciting learning about the subject of the Periodic Table.

Recent activity: 4 months 2 weeks ago
by Scott Donnelly
Mon, 03/28/2022 - 23:43

Structure. Structure. Structure. This blog post describes a classroom activity where students propose the structure of a molecule- based on bond type information- used to accelerate the change in color of red table grapes. 

Recent activity: 2 years 2 months ago