Question

In scenario five, you have the same number of hydrogen and oxygen molecules to start off. Howmany water molecules are made? What is the limiting reactant? What is the excess reactant?

Answer 1

The balanced equation for the production of water is:

2 H2 + O2 -> 2 H2O

In the question we are given 2 moles of H2, and 2 moles of O2, but from what we have seem, we will only need 1 mol of O2 in order to form 2 moles of H2O, therefore the limiting reactant will be H2 and the excess reactant will be O2