When a chemical reaction occurs, OA) the atoms involved remain the same
B) the molecules involved remain the same
C) the atoms arrange themselves into new kinds of molecules
OD) the substances before and after are the same

C) the atoms arrange themselves into new kinds of molecules

Explanation:

To prove that a chemical reaction occurs, the atoms arrange themselves into new kinds of molecules.

Chemical reactions involves bond re-arrangement to give a new set of bonds in the products.

Most chemical reactions occur due to loss, gain or sharing of electrons. This makes the species in the products and reactants have a stable configuration.

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Idont know i wonder tthough seems like it will be intristing