Acid-base reaction

Acid-base reactions: broadly characterized as reactions between an acid and a base, can have different definitions depending on the acid-base concept employed.

Some of the most common are:

Arrhenius definition: Acids dissociate in water releasing H3O+ ions; bases dissociate in water releasing OH- ions.

Bronsted-Lowry definition: Acids are proton (H+) donors; bases are proton acceptors. Includes the Arrhenius definition.

Lewis definition: Acids are electron-pair acceptors; bases are electron-pair donors. Includes the Brønsted-Lowry definition.

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Metathesis or Double displacement reaction

Metathesis or double displacement reaction:

in which two compounds exchange ions or bonds to form different compounds

NaCl(aq) + AgNO3(aq) → NaNO3(aq) + AgCl(s)

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Single displacement or substitution

Single displacement or substitution:

characterized by an element being displaced out of a compound by a more reactive element:
2 Na(s) + 2 HCl(aq) → 2 NaCl(aq) + H2(g)

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