9/5/2023 0 Comments How to make paper cannonA trial run is recommended for those trying it for the first time. The demonstration is spectacularly noisy, producing sharp, crackling bursts of noise and flame which sometimes seem to build rhythmically. In the exothermic reaction which follows, a series of loud, but harmless, bangs are heard as the oxygen that is evolved increases the rate of burning. Potassium manganate(VII) powder is sprinkled on to a burning mixture of hydrogen peroxide solution and ethanol. In this exothermic reaction, a series of loud, but harmless, bangs are heard as the oxygen that is evolved increases the rate of burning.
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