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Rachel notices that many objects have rusted. Rusting is a chemical change that some metal and steel objects
undergo when they are exposed to oxygen. Which option best describes a chemical change?
A. a change from solar energy to chemical energy
B. a change in matter that produces one or more new substances
C. a change from a liquid state to a gas state
D. a change in form or appearance of matter

Sagot :

I believe it is B

Explanation: a chemical change happens when one chemical substance is transformed into one or more different substances. (Such as iron becoming rust)
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