Answer :
Final answer:
Oxygen is the limiting reactant in the given reaction between zinc and oxygen.
Explanation:
To determine the limiting reactant, we need to compare the amounts of product that can be formed by each reactant using their respective stoichiometry. First, we need to balance the chemical equation. Assuming the reaction is:
Zn + O₂ → ZnO
There are 1 mole of Zn for every 1 mole of ZnO, and 1 mole of O₂ for every 1 mole of ZnO. From the given amounts, we have:
35.8g Zn × (1 mole Zn / 65.38g Zn) = 0.547 moles Zn
12.9g O₂ × (1 mole O₂ / 32g O₂) = 0.403 moles O₂
Since the mole ratio of Zn to O₂ is 1:1, the reactant with the lower amount of moles is the limiting reactant. In this case, oxygen (O₂) is the limiting reactant.
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