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Oscillating & Exothermic Reactions, and Supersaturation
Oscillating reactions typically involve eye-catching color changes, but here’s one where the oscillations are between the generation and cessation of gas bubbles.
A colorless solution will effervesce intensely and then the bubbling will decrease and then increase again, etc., demonstrating the concepts of oscillating reactions, supersaturation and exothermic reactions. The oscillations will continue for several minutes.
Includes: acidified ammonium sulfate solution, sodium nitrate solution and teacher demonstration manual. Demonstration time: 15 minutes.
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