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.
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.