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Laws of Chemical Change and Heat Flow

The first lesson provides examples of the Law of Conservation and Mass and the Law of Definite Proportions. Recycling of elements is examined. In lesson two, exothermic and endothermic reactions are demonstrated by an experiment that uses the chemical contents of a pocket warmer and dry ice. The third lesson includes demonstrations of oscillating reactions and clock reactions, as well as interesting though hazardous experiments such as a hydrogen explosion, acetone peroxide explosion, surface polymerization, and silver mirror reaction. (35 minutes)



 
                

Item#: BVL6838
Copyright date: ©1997
DVD ISBN 978-0-7365-6117-4



Part of the Series : Investigations in Chemistry: Experiments and Observations
     
DVD $79.95
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Acids, Bases, and Neutralization
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In the first lesson, five aqueous solutions are tested for degrees of acidity and alkalinity. The nature of acids and bases is examined. In lesson two, table salt is produced by mixing small pieces of aluminum with solutions of hydrochloric acid and ...(more details)
 
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Atoms, Molecules, and Chemical Change
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Lesson one looks at copper atoms using a Scanning Tunnelling Microscope connected to a computer. Several demonstrations of combustion include burning firecrackers under water. Lesson two shows combustion of an industrial diamond. Thermite reaction pr...(more details)
 
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Pure Substances and Mixtures
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In lesson one, heat is used to distill ethanol. Iodine distilled from seaweed demonstrates the chemical phenomenon of sublimation. The principle of chromatography is explored by studying color pigments in water-base pens. Lesson two studies salt diss...(more details)
 
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Matter and Change
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In lesson one of this program, experiments are conducted on five white "mystery" powders to determine chemical content and reaction. Salt is fused into a solid block. By feeding gaseous oxygen into a plastic bag of liquid nitrogen, we observe the res...(more details)
 
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Ions
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Lesson one demonstrates the circumstances under which common materials, such as sugar and table salt, conduct electricity. The process of electrolysis is demonstrated in the making of metallic leaves. In investigating the movement of ions, permangana...(more details)
 
DVD $79.95
DVD + 3-Year Streaming $119.93
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