Chemistry

Chemistry

Problem

Element M exists as diatomic molecules M₂ (blue), and element N is monatomic (orange). • INITIAL sample: 6 M₂ molecules and 18 N atoms. • MID-REACTION sample (exactly 50 % completion): 3 M₂ molecules, 12 N atoms, and 6 molecules of a product that contains one M atom bonded to one N atom. • No other species are detected at this stage. Which balanced chemical equation in the smallest whole-number coefficients is most consistent with these observations? a) M2+N→2 MNM_2 + N \rightarrow 2\,MN b) 3 M2+6 N→6 MN3\,M_2 + 6\,N \rightarrow 6\,MN c) M2+2 N→2 MNM_2 + 2\,N \rightarrow 2\,MN d) M2+N→M2NM_2 + N \rightarrow M_2N

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