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2 mol H2 and 2 mol O2 react as 2H2 + O2 -> 2H2O. How much water forms?
A2 mol
B1 mol
C3 mol
D4 mol
Answer & Solution
Correct answer: A. 2 mol
2 mol H2 needs only 1 mol O2, so hydrogen limits and gives 2 mol of water.
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