Physics, asked by zoyagirl, 3 months ago

if the key is to be coated with playinum instead of copper

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Answered by hadiya333

Answer:

Platinum-Plated Jewelry Can Tarnish and “Turn Your Skin Green” It is a myth that anything coated with platinum cannot tarnish. If the layer of platinum is too thin, it can wear away and expose the metal underneath.

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if the key is to be coated with playinum instead of copper ​

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if the key is to be coated with playinum instead of copper