Double+Displacement+Andrew+Murphy

Double Displacement
 * Definition**- is a reaction in which the positive ion of one compound replaces the positive ion of the other compound to produce two new compounds.
 * Generic Formula**-AB+CD-->CB+AD

For example when silver nitrate combines with sodium chloride, two new compounds--silver chloride and sodium nitrate are formed because the sodium and silver switched places.
 * Ex)**

reactant + reactant -> product + product This reaction does not need to be balanced because the NO3 is on both sides so that makes it balanced.