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Frozen boardFlame TestHot and Cold packHydrogen BalloonThermiteLimiting Reactant Precipitation of Silver ChlorideIron and Oxygen

Flame Test - Ethanol solutions of metal salts are sprayed into a burner flame producing brilliant fireballs with the characteristic color of each metal. This demo is usually used when discussing atomic structure to illustrate that electron transitions

Hydrogen Balloon - In addition to its obvious crowd appeal, detonating a hydrogen balloon can be used to demonstrate combination, redox, formation, and exothermic reactions and activation energy.

Thermite - spectacular reaction iron oxide and aluminum undergo a single replacement reaction producing great quantities of heat and a stream of molten iron and aluminum oxide. Can be used to demonstrate an exothermic, single replacement, or redox reaction.

Limiting Reactant - This demonstration is usually used in a General Chemistry course when the concept of limiting reactant is being introduced.

Precipitation of Silver Chloride - This demo is typically performed when solubility rules are being presented.

Iron and Oxygen

  This is a very versatile demonstration. It is an example of a formation reaction, a redox reaction, and a combustion reaction.

Welcome to the University of Oregon Chemistry Department Lecture

This site has been developed primarily as a resource for UO chemistry instructors, but high school and college chemistry and physical science instructors can find a lot of useful information here too. Come on in and look around! Let's do some demos. But remember...be careful and WEAR YOUR GOGGLES!
"Do not do demos unless you are an experienced chemist!"

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© Copyright 2012 Email: Randy Sullivan, University of Oregon Chemistry Department and UO Libraries Interactive Media Group