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This document provides instructions for performing the "elephant toothpaste" chemistry demonstration. The dramatic reaction produces large amounts of foaming that resembles toothpaste. It involves mixing hydrogen peroxide, potassium iodide solution, and dish soap. This exothermic reaction illustrates chemical changes and decomposition through the production of oxygen gas bubbles captured in soapy foam. Safety precautions are outlined due to the heat released. Variations and the underlying chemistry are also

Author

Regina Peterke

Language

EN