Definition of Reagents

Definition of Reagents
Chemical reagents, reactants, or reagents (English: reactant or reagent) is a material that causes or is consumed in a chemical reaction.
For example, hydrochloric acid is a reagent that reacts with zinc metal to produce hydrogen, or react with calcium carbonate produces carbon dioxide.
The term reagent is also used to refer to chemical substances with a purity sufficient for an analysis or experiment. For example, a reagent water should not contain many impurities such as sodium ions, chloride, or bacteria, and also has high electrical resistance