double displacement reaction
A double displacement reaction is one in which exchange of ions take place.
The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
As can be seen in the chemical reaction, cations are replaced by cations and anions are replaced by anions.
Thus a reaction in which two ions switch places is double displacement reaction.
A reaction in which two ions switch places is called double-displacement reaction.
Double displacement reaction usually takes place between two positive ions or two negative ions. When anions or cations of totally different compounds change places, two totally different compounds are formed.
Syntax for double displacement reaction:
AB + CD --> AD + BC
It can also be defined in simple terms as the reaction in which exchange of ions takes place is called double displacement reaction.
The chemical reaction is as follows:
NaOH(aq) + HCl(aq) --> NaCl(aq) + H2O (l)