reactants

Pre-reaction chemical inputs

Reactants are the substances that participate in and are changed by a chemical reaction.

They appear on the left side of a chemical equation, before the arrow, while the products they transform into appear on the right.

The reactants combine to form water.

In a combustion reaction, for instance, the reactants are typically a fuel and oxygen.

The term extends metaphorically to any ingredients or elements that combine to produce a result.

substances

reagents

Substances for chemical analysis

compounds · elements · molecules · ions · acids · bases · salts · oxidizers · reducers · buffers

transformation

conversion

Act of changing states

combination · displacement · combustion · oxidation · reduction · neutralization · precipitation · exchange · rearrangement · addition

kinetics

rate

Measured speed or charge

frequency · temperature · concentration · order · catalyst · inhibitor · half-life · elementary · steps

thermodynamics

enthalpy

Thermodynamic total heat quantity

Gibbs · entropy · spontaneous · energy · heat · formation · combustion · reversible · constant · temperature

stoichiometry

molarity

Solute amount per volume

  • concentrationSustained single-minded attention
  • molesBurrowing insectivore mammals
  • ratioComparative numerical relation

limiting · excess · yield · equivalents · proportions · coefficients · balancing · formula · calculations · quantities

laboratory

beakers

Open-mouthed laboratory vessels

titration · gloves · measuring · mixing · heating · stirring · diluting · weighing · volumetric · preparation

Categories
Opposites
chemical transformation role

reactantsproducts

Items made for sale

end products · outputs · yields · resultants · byproducts

Family

reactant

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