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Katen [24]
3 years ago
12

Which of these never changes during a chemical change?

Biology
1 answer:
cricket20 [7]3 years ago
6 0
B is not correct because new molecules are formed so numbers can change. D isn't correct because the color often changes, for example metallic iron and clear oxygen form red rust. The arrangement of the atoms changes, too so a isn't correct. C is cotrect
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