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What are some types of chemical reactions you can demonstrate in a lab?

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According to About.com, a variety of experiments involving chemical reactions can be demonstrated in a laboratory, including a thermite and ice reaction, the Briggs-Rauscher oscillating clock, the dancing gummy bear reaction and others. Many of these entertaining experiments use common substances such as ice, sugar and potassium chlorate, an ingredient in bleach.

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What are some types of chemical reactions you can demonstrate in a lab?
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The power of chemical reactions can be demonstrated by adding thermite, a metal powder, to ice. When this reaction is performed on a large block of ice, an exciting explosion occurs. The Briggs-Rauscher oscillating clock is another vivid and more colorful experiment demonstrating chemical reactions. Three colorless solutions are mixed together to create a solution that repeatedly changes from clear to amber and then to deep blue for several minutes. The dancing gummy bear reaction demonstrates how sugar and potassium chlorate can act as a fuel and an oxidizer. This pyrotechnic show produces heat and violet-colored fire. The process of crystallization can be demonstrated using sodium acetate, which is also known as hot ice. When poured onto a surface, the liquid begins to freeze at room temperature, creating stunning crystal structures. Sodium, a silver-colored metal; and chlorine, a poisonous gas, can also be mixed for a chemical reaction that produces common table salt.

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