If the volume of water produced during the reaction doubled, what would happen to the ratio of hydrogen to oxygen in the following equation: 2 H2+ O2 --> 2 H2O

What did the volume of water double FROM? Is the water gaseous? Is it at the same T and P as the reactants?

There must be more information that goes with this question.

The ratio of H to O (2 to 1) must stay the same if the only product is H2O, regardless of the amount of H2O produced.

To determine what would happen to the ratio of hydrogen to oxygen if the volume of water produced during the reaction doubles, we need to analyze the balanced chemical equation.

The balanced chemical equation for the reaction is:
2 H2 + O2 → 2 H2O

According to the stoichiometry of the equation, we see that 2 moles of hydrogen (H2) react with 1 mole of oxygen (O2) to form 2 moles of water (H2O).

If the volume of water produced doubles, it means the amount of water formed also doubles. Since the coefficient of water (H2O) in the equation is already 2, we can infer that the ratio of hydrogen to oxygen will remain the same.

Therefore, even if the volume of water produced during the reaction doubles, the ratio of hydrogen to oxygen in the equation 2 H2 + O2 → 2 H2O will still be 2:1.