ENA value-added tax (VAT), known in some countries as a goods and services tax (GST), is a type of general consumption tax that is collected incrementally, bas...
ENAn addition reaction, in organic chemistry, is in its simplest terms an organic reaction where two or more molecules combine to form a larger one (the adduct).
ENA condensation reaction, is a chemical reaction in which two molecules or moieties, often functional groups, combine to form a larger molecule, together with...
ENA value-added network (VAN) is a hosted service offering that acts as an intermediary between business partners sharing standards based or proprietary data v...