Calculate the amount of zinc required to react with 3 moles of oxygen.

Reaction equation: 2Zn + O2 = 2ZnO
According to the reaction with 2 mol of zinc, 1 mol of oxygen reacts, then we will make the proportion n (Zn) / 2 = 3 / 1. Let us find from this the amount of zinc substance: n (Zn) = 2 * 3/1 = 6 mol.
Answer: To react with 3 moles of oxygen, 6 moles of zinc are needed.



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