Question

Double displacement reaction​

Answer 1

when a compound is places in two atoms it is known as double displacement reaction

Answer 2

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ANSWER :

DOUBLE DISPLACEMENT REACTION - DEFINITION

A double displacement reaction is a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. 

For example,

Na2S+2HCl→2NaCl+H2S

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