noncovalent interactions

JCE 95.03 March 2018 Issue Highlights

Students Using and Understanding Chemistry

The March 2018 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: demonstrations of magnetism and oxidation; the peer-review process; understanding how students learn organic mechanisms; multimedia- and computer-based learning; real-life chemistry activities; using games to teach chemistry; teaching kinetics; spectroscopy; analytical determinations; organic synthesis laboratories; distilling the archives: chemistry and paint.

Floating Squares

I was looking for a new demonstration to initiate a discussion about polarity and related properties to use as part of an exam review. I found a video at ChemEd X (this is part of a ChemEd X subscription). It is entitled “Floating Squares – Hexane and Water” (see note below). I have placed both solutions together before, but I had not added the squares. The demonstration fulfilled my needs. I could have used the original video and muted it if I had not had hexane to demonstrate with.