| Videos: 21 results |
Aromatic Compounds
A molecular model of benzene, the reactions of bromine with cylohexane, cyclohexene, benzene, phenol, and toluene, the effect of substituents and number of methyl groups on the electron density of aromatic rings, and chlorination reactions of methyl benzenes are demonstrated.
Aromatic Compounds
|
Reactions: Alkali Metals with Other Elements
Alkali Metals are shown reacting with various elements.
Oxidation / Reduction |
Reactions |
Descriptive Chemistry
|
Bromination of Hydrocarbons
The light initiated bromination of pentane, hexane isomers, alkyl benzenes and a comparison of bromination of pentane and pentene are demonstrated.
Alkanes / Cycloalkanes |
Reactions
|
Bromine
Reactions and explosions involving bromine are demonstrated.
Calorimetry / Thermochemistry |
Oxidation / Reduction |
Reactions
|
Reactions: Acetylene
Preparation of acetylene and the reaction of chlorine with acetylene are demonstrated. An antique carbide lamp is also demonstrated.
Alkynes |
Reactions |
Water / Water Chemistry |
Oxidation / Reduction
|
Reactions: Chlorine
Reactions and explosions involving chlorine are demonstrated.
Reactions
|
Aqueous Reactions: Hydrochloric Acid
Reactions of solutions with aqueous Hydrochloric Acid.
Aqueous Solution Chemistry |
Precipitation / Solubility
|
Amines and Aniline
pH of aqueous ammonia, cyclohexylamine, and aniline, iodination of aniline, oxidation of aniline with benzoyl peroxide, the nitrous acid test, diazo coupling, reaction of luminol and light sticks are demonstrated.
Amines / Ammonium Compounds
|
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
|
Protein Reactions
Curdling milk, decomposition of hydrogen peroxide by catalase, glucose oxidase activity, hydrolyzing of sucrose with invertase, and using an enzyme to halt the Briggs-Rauscher reaction are demonstrated. Inhibiting the enzyme HIV-1 protease may slow the spread of AIDS.
Proteins / Peptides
|
Reactions of Iodine with alpha-Pinene
Reactions of Iodine with alpha-Pinene
Addition Reactions |
Alkenes |
Applications of Chemistry
|
Iodine
Reactions and explosions involving iodine and its compounds are demonstrated.
Reactions
|
Iodine Clock Reaction
A solution of hydrogen peroxide and sulfuric acid is added to a solution containing iodide ion, thiosulfate ion, and starch. After some time the dark blue color of a triiodide-starch complex is observed. The influences of initial reactant concentrations on the reaction time are examined, as are the influence of volume and temperature.
Kinetics |
Oxidation / Reduction
|
Metal-Iodine Reactions and Cells
Electrochemical reactions are demonstrated and then used to do work.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials
|
Ring Strain
Mixing solid iodine and cyclohexene shows little reaction but mixing iodine and alpha-pinene produces a very vigorous exothermic reaction and sublimation of solid iodine to dense iodine vapor.
Addition Reactions |
Molecular Properties / Structure |
Applications of Chemistry
|
Reaction: Potassium with Bromine
A small piece of potassium is carefully added to liquid bromine, producing a violent reaction.
Oxidation / Reduction |
Reactions
|
Combustion of Methane
Methane combustion in balloons, a Bunsen burner flame, and methane combustion in chlorine are demonstrated.
Alkanes / Cycloalkanes |
Reactions
|
Reactions with Sodium
Reactions involving sodium are demonstrated.
Oxidation / Reduction |
Reactions |
Acids / Bases |
Descriptive Chemistry
|
Hydrogen + Chlorine Cannon
When a corked test tube containing a mixture of hydrogen and chlorine is struck by light from a burning magnesium ribbon, the resulting explosion propels the cork out of the test tube.
Gases |
Photochemistry |
Reactions
|
Addition Reactions of Alkenes
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.
Addition Reactions |
Alkenes
|
Combustion Reactions
Combustion reactions of methane, hydrogen, hexane, and natural gas in chlorine are demonstrated.
Reactions
|
