Double replacement
Double-replacement
This kind of chemical reaction is usually called "displacement" and sometimes "substitution".
AB + C —> AC + B
This kind of reaction is called a double replacement or double displacement reaction, and has the pattern AB + CD --> AD + CB.
AB + CD ==> AD + CB
other name for an exchange reaction but metathesis reaction. This reaction usually occurs in hydrolysis and is AB+CD=AD+CB
AB + CD + energy --> AD + CB
When many were taught chemistry in the 1970s this was called a double decomposition reaction. It is now called a salt metathesis reaction and also double displacement reaction. There are examples and more information at the related link.
Single replacement
Ab+cd > ad+cb. A and c are the metals or the positive ion
.Ab + c cb + a
im pretty sure it depends on the type of reaction wether its a synthesis (a+B=ab), single displacment (a+bc=b+ac) or double displacment(ab+cd=ad+bc).