Question

Ciara’s bike has rusted, which means that the iron in the metal changed to rust.

What has occurred?

Answer 1

C on ed

Step-by-step explanation:

Answer 2

This is a chemical reaction because if a reaction contains rust ,fire, or food it is a chemical reaction .On the other hand,what is not a chemical reaction is and object that contains freezing.Please let me know if this helps (hopefully it does).

Step-by-step explanation: