Question

In the reaction 2H2 + O2 → 2H2O, how many moles of oxygen are required to fully react with 6.0 mol of hydrogen?

Answer 1

Answer:

3 moles of O2

Explanation:

From the equation you can see that the ratio of H2 to O2 is  2:1

  so   6 mole of hydrogen will require  3 mole of O2