I need help with the resonance structures of hydroazidic acid (HN_3). I've figured it out as much that the structure is N-N-N-H, but I don't know why it can't be H-N with each of the other Ns bonded to that N. Anyway, I'd greatly appreciate your help. Normally I'm decent at chemistry, but this involves no math (which is what I'm good at). I know that HN_3 has 16 valence electrons to spare.

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anonymous · Answer

The lines are electron pairs http://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Hydrazoic_acid.svg/620px-Hydrazoic_acid.svg.png