What happens to iron in a bolt as the bolt rusts? A. It undergoes a chemical change. O B. It undergoes a physical change O C. The mass of the atoms decrease O D. It changes into a different element. a

What happens to iron in a bolt as the bolt rusts?

A. It undergoes a chemical change.
O B. It undergoes a physical change
O C. The mass of the atoms decrease
O D. It changes into a different element.
a

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