The meaning of REACTANT is a substance that enters into and is altered in the course of a chemical reaction.

2020年11月24日 · Difference Between Reactant and Reagent. In common usage, the terms “reactant” and “reagent” are used interchangeably. Technically, the two words have different meanings. In analytical chemistry, a reagent is a substance added to cause a chemical reaction or test whether one has occurred. Reagents aren’t necessarily consumed in a ...