Electroplating of metals
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By the manipulation of metal atom's electrons we can cover one metal with another. This is called electroplating. This process involves a power source which sucks out electrons from one metal and pumps them into the metal we want to cover.
Some of the silverware is not pure silver at all. Most of the silver cutlery around the home is really iron plated with a layer of silver. Look at the diagram above. What happens to the number of copper ions in solution as the plating process in underway? Before a metal is coated with another metal it must be cleaned and free of oil or grease. Why? |