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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
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9 votes
9 votes
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

User Sajan
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1 Answer

23 votes
23 votes

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

User Ahsan Kamal
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2.8k points
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