can anyone tell for chemistry exhibition what model can we do
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Electrolyse water with some soap or detergent in it, and dilute salt in a basin. Use low current, you want a slow rate. A battery will do. Put the electrode close together so the gas mixes to make bubble rafts. Explode the gas with a flame from a bbq gas lighter. Start small! The bigger the raft the louder the bangs. Wear safety mask and ear protection. . Dont get carried away or you will empty the basin on yourself.
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