In the balanced equation 2H₂(g) + O₂(g) → 2H₂O(l), what is the ratio of moles of hydrogen to moles of water produced?
Correct: A
The coefficients in a balanced chemical equation represent the molar ratios of reactants and products. From the given balanced equation:
2 moles of H₂(g) react with 1 mole of O₂(g) to produce 2 moles of H₂O(l).
Therefore, the ratio of moles of hydrogen (H₂) to moles of water (H₂O) produced is 2:2, which simplifies to 1:1.