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For N2 + H2 -> NH3, the least whole-number coefficients are?

A2, 3, 1
B1, 2, 3
C2, 1, 2
D1, 3, 2
Answer & Solution
Correct answer: D. 1, 3, 2
Two NH3 molecules contain two nitrogen atoms and six hydrogen atoms, requiring one N2 and three H2 molecules.
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