Double displacement reaction

In chemistry, double displacement reaction, aka a “double elective affinity”, as it was called in the 18th century, as can be contrasted with a “single displacement reaction”, is a reaction in which there is a two-way exchange of chemical components or species between two reactants, which results in two new products.

The double displacement reaction, using Bergman letter notation, is the following generic reaction:

AB + CD → AC + BD

Wherein species A detaches from species B, C detaches from species D, during the course of which, A bonds to C, and B bonds to D, thereby forming two new product species.

See also
Human reproduction reaction

External links
Double displacement reaction –

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