Is iron rust an example of a physical or chemical change?

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Is iron rust an example of a physical or chemical change?

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Answer 1 · 2016-11-03T16:13:10

The rusting of iron is clearly an example of chemical change.

Explanation:

Chemical change is characterized by the formation of new substances and the making and breaking of strong chemical bonds. In these circumstances we break iron-iron bonds and oxygen-oxygen bonds, and form $F e^{I I} O$ $Fe^(II)O$ and $F e^{I I I} O$ $Fe^(III)O$ bonds. See this [older answer.](https://socratic.org/questions/why-is-oxidation-bad)

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Is iron rust an example of a physical or chemical change?

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