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The 51 pages that link to Chemical reaction, each with the reason it gives.

• Covalent bondNarrower topic: Reactions rearrange covalent bonds to produce different substances.

• Chemical elementCompared with: Chemical reactions change compounds, not the elements present.

• Chemical bondRelated: Reactions transform matter by breaking existing bonds and forming new ones.

• StoichiometryRelated: Stoichiometry tracks the quantities involved in these transformations.

• Transition stateNarrower topic: A transition state belongs to a particular pathway connecting reactants and products.

• Structural formulaRelated: Reaction diagrams use structural formulas to show changes in molecular connectivity.

• Activation energyNarrower topic: The barrier separates the starting substances from a reaction’s product-forming pathway.

• Chemical synthesisNarrower topic: Synthesis consists of deliberately chosen reactions that transform starting materials into products.

• DissolutionCompared with: Dissolution can preserve a substance’s chemical identity, unlike a reaction that forms new substances.

• Corrosive substanceNarrower topic: Corrosive damage is the visible result of reactions between a substance and the contacted material.

• John DaltonNarrower topic: Dalton treated reactions as rearrangements of indivisible atoms.

• Conservation of massRelated: Reactions alter substances while preserving the total mass of their reactants and products.

• Dalton's law of partial pressuresCompared with: The simple sum rule describes nonreacting components rather than pressure changes driven by reaction.

• Reaction rateNarrower topic: Reaction rate measures the speed at which this transformation proceeds.

• Atmospheric lifetimeRelated: Atmospheric oxidation and other reactions remove gases by transforming them.

• Nuclear transmutationCompared with: Unlike nuclear transmutation, ordinary chemistry does not change one element into another.

• Molecular recognitionCompared with: Recognition can occur without chemical transformation, though it often positions partners for reactions.

• Conjugate baseNarrower topic: Conjugate bases arise as products of acid–base reactions.

• Chemical equationNarrower topic: An equation represents this underlying transformation symbolically.

• Concentration gradientCompared with: Reaction can create or consume concentration differences rather than merely transport substances.

• MoleculeRelated: Reactions rearrange atoms by breaking and forming molecular bonds.

• Sigma bondNarrower topic: Reactions can form or break sigma bonds as molecular connectivity changes.

• Atomic theoryRelated: Reactions transform substances while conserving their constituent atoms.

• Chemical reactorNarrower topic: Reactor equipment exists to enable and control chemical transformations.

• Irreversible processRelated: Finite reaction rates and mixing commonly make chemical transformations irreversible.

• MixtureCompared with: Mixing alone need not cause the bond changes that define a chemical reaction.

• AbsorptionCompared with: Absorption can retain a substance without chemically transforming it.

• Chemical intermediateNarrower topic: An intermediate is defined by its role within a reaction or a sequence of reactions.

• Reaction intermediateNarrower topic: Intermediates arise when a reaction proceeds through more than one elementary step.

• Reaction quotientNarrower topic: A reaction equation specifies which activities belong in the quotient.

• Bond lengthRelated: Bond formation and cleavage alter internuclear distances along reaction pathways.

• Chemical decompositionNarrower topic: Decomposition is one basic pattern of chemical reaction.

• ChemistryBroader topic: Reactions are the transformations chemistry seeks to describe and explain.

• History of chemistryNarrower topic: Historical theories sought to explain the observable transformations chemists performed.

• Atom economyNarrower topic: Atom economy evaluates how a reaction’s atom rearrangement distributes material among products.

• Chemical compoundNarrower topic: Reactions form compounds by rearranging atoms and changing their bonds.

• CatalystNarrower topic: A catalyst changes the rate of this process without changing its overall stoichiometry.

• Dalton's atomic theoryRelated: Dalton pictured reactions as rearrangements that preserve each kind of atom.

• Etching (chemical machining)Narrower topic: Etching removes material through reactions between the surface and reactive chemicals.

• Chemical energyNarrower topic: Reactions transfer energy when reactants and products differ in chemical energy.

• Unit operationCompared with: Unit operations distinguish physical changes from these chemical transformations.

• Nuclear chemistryCompared with: It contrasts with nuclear reactions, which change nuclei rather than only electron arrangements.

• Reversible reactionNarrower topic: Reversibility is a property of chemical reactions, distinguishing those that proceed in both directions.

• By-productNarrower topic: Side reactions can generate substances alongside a reaction’s intended product.

• Separation processCompared with: A separation redistributes existing components, whereas a reaction changes their chemical identities.

• Activated complexNarrower topic: An activated complex occurs during the conversion of reactants into products.

• Divergent synthesisNarrower topic: Each branch begins when the shared precursor undergoes a distinct chemical transformation.

• Chemical phenomenaBroader topic: Reactions are the central class of phenomena that change substances’ composition.

• Component (mixtures)Related: Reactions consume and produce components, changing system composition.

• Germain Henri HessNarrower topic: Hess’s heat measurements tracked chemical transformations between defined reactants and products.