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  1. What Is a Reactant in Chemistry? Definition and Examples

    Nov 24, 2020 · Learn what a reactant is in chemistry. Get the definition and examples and learn how reactants differ from reagents.

  2. What Is a Reactant in Chemistry? - ThoughtCo

    Aug 10, 2019 · Reactants are the starting materials in a chemical reaction. Reactants undergo a chemical change in which chemical bonds are broken and new ones formed to make products. …

  3. What is a Reactant? - ChemTalk

    Reactants are consumed when a chemical reaction takes place, and a reagent does not have to be consumed. An example of a reagent is a catalyst, which is a material that helps to speed up …

  4. REACTANT Definition & Meaning - Merriam-Webster

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

  5. 2.17: Reactants and Products - Chemistry LibreTexts

    The substance (s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction.

  6. What is a Reactant? - BYJU'S

    Reactants are raw materials that react with one another. The chemical bonds of the reactants are broken under the right conditions, such as temperature, time, or pressure, and the atoms form …

  7. Reactant vs. Reagent: Key Definitions, Examples, and Differences ...

    Aug 5, 2025 · Reactants are chemically transformed and consumed during a reaction. Reagents facilitate or induce chemical changes but may not appear in final products. The terms are often …

  8. What Are Reactants in Science? - California Learning Resource …

    Jan 4, 2025 · Reactants, often referred to interchangeably as reagents in specific contexts, are the starting materials in a chemical reaction. They undergo transformation at the atomic and …

  9. Definition of reactants - Chemistry Dictionary

    Reactants are substances initially present in a chemical reaction that are consumed during the reaction to make products. Some chemical reactions go to completion, resulting in all of the …

  10. Reactant - Simple English Wikipedia, the free encyclopedia

    Reactants are changed into products by the reaction, and are written on the left side of a chemical equation. The words "reactant" and "reagent" are often used to mean the same things, even …