Materials

Calcium metal

1% hydrochloric acid

3% hydrogen peroxide (H₂O₂)

Manganese dioxide catalyst (MnO₂)

2 flasks

2 corks with a stopper

2 plastic tubes

2 gas collecting tubes

Vaseline

1 hydrogen fuel cell**

1 motor with gears**                                     **both on a stand**

1 electric balance

2 50 ml measuring cylinders

2 disposable plastic pipettes

2 weighing plastic containers

2 funnels

2 pairs of safety gloves

2 pairs of safety goggles