Zinc-plating Copper and the Formation of Brass –'Turning Copper into ‘Silver’ and ‘Gold’'
In this classic demonstration, from the Royal Society of Chemistry, a copper coin is plated with zinc using a solution of sodium zincate in the presence of zinc, the coin will appear silver. When the coin is heated, the zinc and copper form an alloy of brass and so the coin appears gold.
The resource provides a list of apparatus and chemicals needed for the experiment, together with teaching tips.
Curriculum links include: electrochemistry, electroplating, alloys
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|Subject(s)||Chemistry, Demonstrations, Practical work, Science|
|Age||11-14, 14-16, 16-19|
|Published||2000 - 2009|
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- Royal Society of Chemistry
- Learn Chemistry