Question

Based on the law of conservation of mass, if approximately 20g of water reacts in the following equation,

producing about 15g of oxygen, what mass of hydrogen (H2) was produced in this reaction?
2H20
2H2 + O2

Answer 1

Answer: H2O2

Step-by-step explanation:

First, calculate the moles of H2O2 reacting. In order to do this, we must evaluate the relative molecular mass ( Mr ) of hydrogen peroxide