Four reason why iron is a chemical change
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Answer:
The rusting of iron is a chemical change because it is two substance sreacting together to make a new substance .
Explanation:
In this process rust i.e Ferris oxide gets deposited on irons surface when exposed to moist air .
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Explanation:
1. the process is not easily reversible, that is rusted iron can't be recovered into the original one
2. energy is usually used up during rusting process
3.a new compound is formed , during rusting , iron combines woth the moisture air( oxygen) to form iron (lll) oxide which is new compound
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