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A catalyst at work

Manganese(IV) oxide and hydrogen peroxide.

Topic: Reaction ratesGrade: 10Free

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What you do

  1. Add MnO₂ to tube 1 only. Compare the gas collected in the two measuring tubes.
  2. Hold a glowing splint at tube 1.
  3. Try the glowing splint at tube 2 as well.

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