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uysha [10]
2 years ago
5

Which of the following examples shows that a chemical reaction has occurred?

Biology
2 answers:
loris [4]2 years ago
7 0

Answer:

C

Explanation:

When rust forms on something, a chemical change is occurring.

AVprozaik [17]2 years ago
4 0

Answer:

a

Explanation:

a

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