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The expansion of the Carolingian Empire under Charlemagne
Stereochemical
Pertaining to the spatial arrangement of atoms in molecules and the effect of this arrangement on chemical reactions.
Regio-
A prefix in organic chemistry indicating the region or orientation of a chemical reaction or structure on a molecule.
Stereochemical
Pertaining to the spatial arrangement of atoms within molecules and the impact of this arrangement on chemical properties and reactions.
Regio-
A prefix denoting the region or position in a molecule where a chemical reaction occurs, often used in the context of regioselectivity.
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