Burning of sulfur to produce sulfur dioxide
Sulfur is burned in a deflagrating spoon in a flask, forming sulfur dioxide in the synthesis reaction.
reactions
Reaction of magnesium with carbon dioxide
The reaction of magnesium with carbon dioxide (dry ice) is demonstrated. Despite the absence of air, the magnesium continues to glow.
Oxidation and reduction of copper
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.
Exploding soap bubbles filled with hydrogen alone
Hydrogen-filled soap bubbles are ignited producing small explosions.
Ammonium dichromate volcano
Ammonium dichromate decomposes to form nitrogen, water vapor, and chromium(III) oxide.
Exploding soap bubbles filled with hydrogen plus some oxygen
Hydrogen plus some oxygen produces louder explosions.
Nitrogen triiodide detonation
Simply touching dry nitrogen triiodide with a feather causes it to explode. Includes slow-motion replay of explosion.
Exploding soap bubbles filled with hydrogen plus more oxygen
Hydrogen plus more oxygen produces even louder explosions.
Loss of mass of marble due to reaction with nitric acid
The effect of nitric acid on marble chips is demonstrated.
Reaction of sodium and chlorine
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.