Question

How many moles of hydrogen gas would be required to produce 25 moles of H2O?

Answer 1

There would be 25 moles

Step-by-step explanation:

This is the equation for water (synthesis):

2H₂ + O₂ → 2H₂O

Since there are 25 moles of water, the moles of hydrogen gas will have 25 moles.