AP Chemistryeasymcq1 pt
2H₂ + O₂ → 2H₂O. How many moles of H₂O form from 4.0 mol of H₂ with excess O₂?
A.4.0 mol
B.2.0 mol
C.8.0 mol
D.1.0 mol
Explanation
Core Concept
The balanced equation gives a 1:1 mole ratio between H₂ and H₂O (2:2). Four moles of H₂ therefore produce 4.0 mol of water.
Correct Answer
A4.0 mol
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