Question

the ____ coating of copper is an example of corrosion​

Answer 1

Answer:

Iron

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Answer 2

Answer:

Green coating of copper carbonate

Explanation:

When exposed to the atmosphere, copper oxidizes, causing bright copper surfaces to corrode . After a few years, this tarnish gradually changes to dark brown or black, and finally to green.

Copper corrosion occurs at negligible rates in unpolluted air, water and de aerated non-oxidizing acids.