Use the equation to answer the question.
Information
Upper F e Subscript 3 Upper O Subscript 4 plus 4 Upper H Subscript 2 yields 3 Upper F e plus 4 Upper H Subscript 2 Upper O
Question
How many moles of hydrogen (Upper H Subscript 2) are required to completely react with 3 moles of iron oxide (Upper F e Subscript 3 Upper O Subscript 4)?
Answer options with 4 options
A.
4 moles
B.
6 moles
C.
9 moles
D.
12 moles
According to the balanced equation, 4 moles of hydrogen (H₂) are needed to completely react with 1 mole of iron oxide (Fe₃O₄). Therefore, if we have 3 moles of iron oxide, we can multiply that by 4 to find the number of moles of hydrogen required.
3 moles Fe₃O₄ * 4 moles H₂ / 1 mole Fe₃O₄ = 12 moles H₂
Therefore, the answer is D. 12 moles.