17 Results
Group VIA: Chalcogens   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Exploding Soap Bubbles: Hydrogen + Oxygen   
(Movie/Animation, Audio/Visual (6))
Explosions of bubbles filled with only hydrogen and with varying ratios of hydrogen and oxygen are demonstrated.
Exploding Soap Bubbles: Hydrogen + Oxygen   
(Movie/Animation, Audio/Visual (6))
Explosions of bubbles filled with only hydrogen and with varying amounts of hydrogen and oxygen are demonstrated.
Exploding Soap Bubbles: Hydrogen + Oxygen   
(Movie/Animation, Audio/Visual (6))
A series of three videos shows that as the ratio of oxygen to hydrogen in soap bubbles increases, the explosions that occur when the bubbles are ignited get louder. (The fact that with an excess of oxygen the explosions would become softer again is not shown.) Each video is repeated with no voice-over so that only the sounds of the explosions are heard. Five still images are provided to show the stoichiometry on the molecular scale. The videos are intended to be shown in order beginning with Hydrogen Alone and ending with hydrogen plus more oxygen.
Addition Reactions of Alkenes   
(Movie/Animation, Audio/Visual (6), Movie/Animation (1))
The Diels-Alder reaction, addition of oxygen to tetrakis(N, N-dimethylamino) ethylene, polymerization of ethylene, and addition of iodine to a-pinene are demonstrated. Molecular models of ethene are shown.
Oxidation-Reduction (Redox) Reactions   
(Movie/Animation, Audio/Visual (5))
Demonstrations exploring oxidation/reduction chemistry.
Electrolysis   
(Movie/Animation, Audio/Visual (4))
Various examples of electrolysis are presented.
Acid Base Reactions of Sulfur Dioxide   
(Movie/Animation, Audio/Visual (3))
Acid base reactions involving sulfur dioxide are shown.
Combustion of White Phosphorus   
(Movie/Animation, Audio/Visual (3))
Phosphorus combines with oxygen in a highly exothermic reaction.
Combustion Reactions   
(Movie/Animation, Audio/Visual (3))
Combustion reactions of methane, hydrogen, hexane, and natural gas in chlorine are demonstrated.
Combustion of Methane   
(Movie/Animation, Audio/Visual (3))
Methane combustion in balloons, a Bunsen burner flame, and methane combustion in chlorine are demonstrated.
Ozone: Absorbance of UV Light   
(Movie/Animation, Audio/Visual (3))
Ozone is produced. Exposure to a shortwave ultraviolet source causes the ozone to cast a shadow against a fluorescent yellow background.
Dust Explosion   
(Movie/Animation, Audio/Visual (2))
Here are two demonstrations of the principle behind a grain elevator explosion. Lycopodium powder is dispersed inside closed containers containing a lighted candle resulting in explosions.
Oxygen   
(Movie/Animation, Audio/Visual (12))
Reactions and explosions involving oxygen and its compounds are demonstrated.
Organic Compounds   
(Movie/Animation, Audio/Visual (11))
An assortment of organic compounds are ignited under various conditions.
Hydrogen, Oxygen, and Their Compounds   
(Article (35))
Volume 04, issue 01 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
The Sulfur Family   
(Article (34))
Volume 03, issue 06 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.