How do you know that rusting of iron is a change

1.	How do you know that rusting of iron is a change
Answer» 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

Answer»

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

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How do you know that rusting of iron is a change​

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How do you know that rusting of iron is a change