Physics, asked by zoyagirl, 2 months ago

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

Answers

Answered by hadiya333
1

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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