Chemistry Demonstration: Old Foamy

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A classic chemistry demonstration, also known as elephant's toothpaste. Hydrogen peroxide is decomposed ...
A classic chemistry demonstration, also known as elephant's toothpaste. Hydrogen peroxide is decomposed to form oxygen gas and water. When potassium iodide is added as a catalyst, the oxygen forms bubbles and creates a large volume of foam. 2H2O2 --> O2 + 2H2O *******www.thirstforscience**** Music: Kevin MacLeod
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