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2.5 moles of O₂ = 5 moles of H₂O

Explanation:

The balanced equation for the reaction is given below:

2H₂ + O₂ —> 2H₂O

From the balanced equation above,

1 mole of O₂ reacted to produce 2 moles of H₂O.

Finally, we shall determine the number of mole of H₂O produced by the reaction of 2.5 moles of O₂. This can be obtained as follow:

From the balanced equation above,

1 mole of O₂ reacted to produce 2 moles of H₂O.

Therefore, 2.5 moles of O₂ will react to produce = 2.5 × 2 = 5 moles of H₂O.

Thus,

2.5 moles of O₂ = 5 moles of H₂O

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