In a reaction in which A + B yields AB, the reaction is referred to as a _________.

A. decomposition reaction
B. double-replacement reaction
C. combustion reaction
D. composition reaction

i think is a

1 answer

http://misterguch.brinkster.net/6typesofchemicalrxn.html

decomposition would be AB->A+B

hint: composition is another word for "synthesis"