How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas? 2 moles of water 4 moles of water 5 moles of water 7 moles of water

Option (b) is the correct answer.

Explanation:

As it can be seen from the chemical equation, 2 moles of hydrogen reacts with 1 mole of oxygen.

Therefore, 2 moles of oxygen will react with 4 moles of hydrogen. So, oxygen is the limiting reagent and hydrogen is the excess reagent. Therefore, the reaction equation will be as follows.

Thus, we can conclude that 4 moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas.

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