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RoseWind [281]
3 years ago
11

Used to make coins and is unable to tarnish in the air

Social Studies
2 answers:
Klio2033 [76]3 years ago
4 0

Answer:

Im pretty sure this is what you mean Corrosion of Copper in the Atmosphere When oxidation occurs with iron, the result is called rust. A penny with a high copper content won't disintegrate in air, because once a surface layer of copper oxide forms it prevents further corrosion.

LiRa [457]3 years ago
3 0

Answer:

oxidation occurs with iron, the result is called rust. A penny with a high copper content won't disintegrate in air, because once a surface layer of copper oxide forms it prevents further corrosion.

Explanation:

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