- To determine the effects of mixing manganese dioxide and hydrogen peroxide.
- Large graduated cylinder
- Powdered manganese dioxide
- Hydrogen peroxide (3% or 30%--30% will give better results)
- Place some powdered manganese dioxide at the bottom of the graduated cylinder.
- Pour in some hydrogen peroxide.
- A gas will evolve, which is oxygen. Place a glowing wooden splint in the gas the verify
that it is oxygen.
- What happens to the hydrogen peroxide?
- What is the reaction that occurs?