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According to the law of conservation of matter, the number of ________ is not changed by a chemical reaction.

molecules
bonds
atoms
products

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According to the law of conservation of matter, the number of atoms is not changed by a chemical reaction.


User Mircea Sandu
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According to the law of conservation of matter, the number of Atoms is not changed by a chemical reaction.


They're the same before and after a chemical reaction
User Michael Tyson
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