1,1'-Oxybis(4-nitrobenzene) — CAS 101-63-3

1,1'-Oxybis(4-nitrobenzene) (C12H8N2O5, CAS 101-63-3) — a free educational 3D molecular model for teachers and students, by MolGod.org. Read the atoms directly: each sphere bears an engraved element symbol. Ask students to describe the framework of 1,1'-Oxybis(4-nitrobenzene) before anything else: two 6-membered rings, both aromatic. Then count the bonds together; there are 28 (14 single, 2 double and 12 aromatic, drawn in Kekulé form). Hand the model round and let students tally the engraved a…

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