Reactant: Chemistry glossary

Reactant: Definition

A reactant is any chemical substance that undergoes a chemical change during a chemical reaction. Reactants are the starting materials in the reaction which deplete in quantity as the reaction progresses. The left side of a reaction equation represents the reactants while the right side are the products formed.

ReactantsProducts
NaOH + HCl → NaCl + H2O


Published on: 10 Dec 2017 1910.
Last updated: 10 Dec 2017 1910.





Subsidy Discount: Up to 20%



An app that has a periodic table, all of the element properties plus dozens of basic chemical reactions. HERE it is!



Download the new CHEMISTRY APP now.

HERE