Question

Rusting of iron is a chemical change give reason

Answer 1

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This is because the change cannot be reversed back and also a new compound is formed. So it is a chemical change

Answer 2

Explanation:

The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. Rusting would only be a physical change if iron molecules remained pure iron throughout the process.