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Videos: 8 results
Energy from Oxidation of Food (main)  
Food is added to liquid potassium chlorate, resulting in oxidation of the food.
Calorimetry / Thermochemistry |
Oxidation / Reduction |
Nutrition
Energy from Oxidation of Food  
Food undergoes rapid oxidation when placed in molten potassium chlorate.
Calorimetry / Thermochemistry |
Kinetics |
Oxidation / Reduction |
Reactions |
Nutrition
Factors Affecting Glucose Oxidase Activity  
Various factors which affect glucose oxidase activity are demonstrated.
Catalysis |
Enzymes |
Kinetics |
Proteins / Peptides
Halting the Briggs-Rauscher Oscillating Reaction  
The Briggs-Rauscher reaction is demonstrated in three different ways. Catalase from a liver extract decomposes the hydrogen peroxide in an Briggs-Rauscher reaction, stopping the oscillations.
Catalysis |
Kinetics |
Enzymes |
Proteins / Peptides
Sucrose Dehydration gives Sulfur Dioxide  
Sulfuric acid dehydrates sucrose forming carbon.
Carbohydrates |
Oxidation / Reduction |
Reactions
HIV-1 Protease: An Enzyme at Work  
This is "HIV-1 Protease: An Enzyme at Work", from a video tape published by the Journal of Chemical Education - Software as Special Issue 13
Applications of Chemistry |
Enzymes |
Proteins / Peptides |
Medicinal Chemistry
Benedict's Test for Reducing Sugars  
Tests for glucose, sucrose, and fructose.
Carbohydrates |
Oxidation / Reduction |
Qualitative Analysis
Formation of Carbon from Carbohydrate  
Sulfuric acid has a very high affinity for water. It is shown to dehydrate a carbohydrate (sucrose) forming carbon. Sulfuric acid is reduced to sulfur dioxide, which bleaches a rose petal. In a second experiment, the sulfur dioxide reduces purple permanganate to nearly colorless manganese(II).
Acids / Bases |
Carbohydrates |
Oxidation / Reduction |
Reactions