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.
Hydrogen-filled soap bubbles are ignited producing small explosions.
Ammonium dichromate decomposes to form nitrogen, water vapor, and chromium(III) oxide.
Hydrogen plus some oxygen produces louder explosions.
Simply touching dry nitrogen triiodide with a feather causes it to explode. Includes slow-motion replay of explosion.
Hydrogen plus more oxygen produces even louder explosions.
The effect of nitric acid on marble chips is demonstrated.
A small piece of sodium metal is placed in a flask containing chlorine gas. Initially, no reaction is observed, but addition of a drop of water to the sodium initiates a vigorous reaction. Includes close-up replay of reaction.
Powdered aluminum and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
Powdered manganese and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
