Question

why rusting is a chemical change give reason​

Answer 1

Answer:

because we cant get normal iron back from the rusted iron and also a new substance is formed(rust)

Explanation:

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Answer 2

Answer:

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.