Question

If a chemist starts with 4 moles of H2 and 4 moles of O2, what is the limiting reactant? How do you know?

Answer 1

Step-by-step explanation:

The balanced equation is

2 H2 + 02 ======> 2 H2 O

so it takes twice as many H2 moles as O2 to complete the reaction

the chemist does not have enough H2 (needs 8 moles) , so H2 is the limiting reactant .