If a metal changes color over time from exposure to air, what has likely occurred?

Chemistry

1 answer:

natita [175]3 years ago

3 0

Answer:

Option A. a chemical change

Explanation:

A chemical change is a change in which new substance is formed and can not be easily reversed. A change of metal color when exposed to air for a long time is simply called rusting. This is a chemical change as new substance is formed. This can be seen when Zn roofing sheets changes color over time on exposure to air.

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