Electroplating:
...is coat (a metal object) by electrolytic deposition with chromium, silver, or another metal.
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- The negative electrode is made of the object to be electroplated.
- The positive electrode is made of the matal to coat the object with.
- The electrolyte is the solution of the coating metal.
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Redox Reactions:
An oxidation-reduction (redox) reaction is a type of chemical reactionthat involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
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- When an ion loses electrons, it is oxidised
- When an ion gains electrons it is reduced
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