Electrolysis of a potassium nitrate solution produces oxygen at the anode and hydrogen at the cathode.
Powdered aluminum and solid iodine are mixed and no reaction is observed. Adding water to the mixture initiates a reaction.
A piece of copper metal is heated in a flame and oxidized to black copper oxide by air. The oxidized copper is reduced when placed in a hydrogen atmosphere. When removed from the hydrogen atmosphere, the metal is again oxidized.
Simply touching dry nitrogen triiodide with a feather causes it to explode. Includes slow-motion replay of explosion.
An electric current is passed through a sodium sulfate solution. Gases are collected at the electrodes are tested for pH.
The reaction of magnesium with carbon dioxide (dry ice) is demonstrated. Despite the absence of air, the magnesium continues to glow.