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21 June, 22:42

In a chemical equation, numbers often appear in front of a chemical formula. What do these numbers indicate?

The number of atoms in each molecule in the reaction.

The number of molecules in each atom in the reaction.

The number of elements in the reaction.

The number of molecules or atoms of each substance in the reaction.

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  1. 21 June, 23:54
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    The number of molecules in each atom in the reaction.
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