2006-12-03 11:06:46 · 2 answers · asked by RANDY B 1 in Science & Mathematics ➔ Chemistry
an exchange reaction, or a double replacement reaction is a chemical reaction in which parts of two reacting structures swap places; i.e. a reaction of the type:
AB + CD → AD + CB
where A, B, C and D represent molecules or groups of molecules. The exchange can be thought of as "switching dance partners".
Unlike single displacement reactions, which are always redox, double displacement reactions never feature a redox process.
2006-12-03 11:11:15 · answer #1 · answered by James Chan 4 · 0⤊ 0⤋
A typical double replacement reaction can occur when two ionic compounds are mixed together.In water these ionic compounds split apart into their respective anions and cations
Written using generic symbols, it is:
AB + XY ---> AY + XB
Some examples of actual reactions are:
KOH + H2SO4 ---> K2SO4 + H2O
FeS + HCl ---> FeCl2 + H2S
2006-12-03 11:18:02 · answer #2 · answered by Armena 1 · 0⤊ 0⤋