INTELECOM / SCIENCE PHOTO LIBRARY INTELECOM / SCIENCE PHOTO LIBRARY
Electrolysis of silver nitrate. Time-lapse close-up footage of a solution of silver nitrate being electrolysed with graphite pencils being used as the electrodes. The start of the clip shows bubbles of oxygen gas (O2) being produced at the anode (the pencil on the left). The clip then switches to a view of the cathode (the pencil on the right), showing crystals of silver metal being deposited on the tip of the pencil.
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