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Learn how to set up an electrolysis experiment using test tubes, water tank, battery eliminator, cables, clips, and foil electrodes to observe gas bubble production.
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Test tubes Water tank Battery eliminator Cables and clips Foil electrodes
Immerse test tube under water, and tilt so that it fills with water: remove air bubbles. Insert electrode, and invert. Keep the mouth below water level, and the tube stays filled with water. tape
When all is ready, power on. It may take a few minutes before gas bubbles are visible.