ChemistryAssignment

media type="youtube" key="1zWykQ8Xc6w" height="385" width="480" =EXPLODING GUMMY BEARS=

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4. Clamp test tube in to a Retort stand at a 45 degree angle then gently heat over a Fisher burner flame. Keeping the open end pointed safely away from people. Potassium Chlorate does not melt till approximately 350 degrees Celsius. Heat the test tube in the hottest part of the flame until you have a cloudy liquid at a steady boil.======

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** Caution ** This reaction produces a large quantity of heat, flame, and smoke (mostly water vapour). It should be done in a well ventilated room, or, preferably, in a fume hood. Potassium chlorate should be used with caution. It is a strong oxidizing agent, especially when molten. Keep all combustible materials away from the reaction area. Make sure the test tube used is scrupulously clean and the mouth is pointed away from the audience ====== Summary ** When heated, potassium chlorate decomposes, producing sufficient oxygen to ignite the sugar in the gummy bear. Since the oxidation of the sugar is very exothermic, sodium chlorate continues to decompose to oxygen, and the rate of combustion becomes very rapid.
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The chemical equations for this demo are:
 * 2KClO3(s) ****à **** 2KCl(s) + 3O2(g) **


 * C6H12O6 + 6O2 --> 6CO2 + 6H2O **

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