Yoshi and the Hydrogen Peroxide Apple!
3,652 views · Published 29 October 2010 · 0:44 · Indexed 8 November 2026
Channel: MrLundScience · 2010 · Science & Technology
For Halloween this year, we went with a Super Mario Bros. theme. This is one of the demonstrations we did that day as part of the performance, involving Mario's dinosaur buddy Yoshi eating a poisoned apple. He ends up feeling quite sick because of it. The reaction is actually the decomposition of hydrogen peroxide into steam and oxygen gas. This happens usually very slowly, but with the addition of potassium iodide, the iodide ion acts as a catalyst. Detergent was added to trap the oxygen that was produced.
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