Chemistry help!!! best answer wins 10 points?

i need as much info on combination reactions, combustion reactions, decomposition reactions, displacement reactions and precipitation reactions as possible. best answer wins 10 points. thx in advance.
Update: for those first 6 answers, they weren't at all helpfull, and u get 10 points by me voting in "best answer"!

Duh!?
11 answers 11