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butane.mp3 chain_isomers.mp3 changing_connections.mp3 Cis-Trans_Z_E_Isomers.mp3 configurational_isomers.mp3 conformational_isomers.mp3 constitutional_isomers.mp3 diastereoisomers.mp3 different molecules.mp3 dynamic_changes.mp3 eclipsed.mp3 eclipsed ethane.mp3 enantiomer.mp3 exchanging_substituents.mp3 internal_rotations.mp3 isobutane.mp3 moving_atoms.mp3 non-enantiomeric_diastereoisomer.mp3 positional_isomers.mp3 respecting_valences.mp3 same_molecule.mp3 staggered_ethane.mp3 structural_changes.mp3