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Reagents, such as sulfur (picturt), are the stairtin materials that are uised in chemical reactions.

A reagent /riˈənt/ is a "substance or compoond that is addit tae a seestem in order tae bring aboot a chemical reaction, or addit tae see if a reaction occurs."[1]

References[eedit | eedit soorce]

  1. IUPAC, Compendium o Chemical Terminology, 2nt ed. (the "Gold Book") (1997). Online corrected version:  (1996) "Reactant".