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(Chemistry) a chemical reaction between two compounds that results in the interchange of one part of each to form two different compounds, as in AgNO3 + KI → AgI + KNO3. Also called: metathesis
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|Noun||1.||double decomposition - a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB)|
chemical reaction, reaction - (chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
double replacement reaction - a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound