Chemistry homework but i don't have a clue..?

[ILOVETWILIGHT]

we were to copy down..
find out
everyday reactions for..
-concentration
-particle size
-temperature
-catalyts


please help some examples of where you would find these?
what? lol i dont get it how can i specify it..

 

[ßㄨƒ 'the ace' J.C]

u've not even given us a clue ... specify please!

 

[gooner93]

sounds like you doing rates of reactions
type it into google