Respuesta :

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Answer:

6 mols

Explanation:

Notice that on the left, there is one "O2" molecule, and one O2 results in two "H2O" molecules. So the ratio of O2 to H2O is 1 to 2
If we have 3 mols of oxygen, then per the ratio, we would have 6 mols of H2O, since 3*2=6