12 Results
Group VIIA: Halogens   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Iodine   
(Movie/Animation, Audio/Visual (8))
Reactions and explosions involving iodine and its compounds are demonstrated.
Iodine Clock Reaction   
(Movie/Animation, Audio/Visual (6))
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.
Protein Reactions   
(Movie/Animation, Audio/Visual (6))
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.
Amines and Aniline   
(Movie/Animation, Audio/Visual (6))
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.
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.
Metal-Iodine Reactions and Cells   
(Movie/Animation, Audio/Visual (4))
Electrochemical reactions are demonstrated and then used to do work.
Halting the Briggs-Rauscher Oscillating Reaction   
(Movie/Animation, Audio/Visual (4))
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.
Ring Strain   
(Movie/Animation, Audio/Visual (2))
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.
Reactions of Iodine with alpha-Pinene   
(Movie/Animation, Audio/Visual (2))
Reactions of Iodine with alpha-Pinene
Metals 2 (GCMP)   
(Interactive Simulation, Software (1))
Reactions of Metals 2: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will observe the reactions of different metals (Zn, Ni, Mn, Fe) with iodine. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.
Metals 1 (GCMP)   
(Interactive Simulation, Software (1))
Reactions of Metals 1: this is a resource in the collection "General Chemistry Multimedia Problems". In this problem we will observe the reactions of different metals (Zn, Ni, Mn, Fe) with iodine. General Chemistry Multimedia Problems ask students questions about experiments they see presented using videos and images. The questions asked apply concepts from different parts of an introductory course, encouraging students to decompartmentalize the material.