Qualification > Sciences
Chemistry Help HERE ONLY !!
unknown 101:
--- Quote from: emi on May 29, 2009, 03:37:00 pm ---thanks alot
--- End quote ---
ur welcome, ;)
lana:
ooh ok !!! :P thanks alot and seriously lilwayne your the best !!! ;D
+rep for you
unknown 101:
--- Quote from: lana on May 29, 2009, 03:39:36 pm ---ooh ok !!! :P thanks allot and seriously lilwayne your the best !!! ;D
+rep for you
--- End quote ---
Thanks :D
emi:
--- Quote ---somebody please explain this to me ...when a reaction cool or lose heat it's endothermic right ? because energy is taken in ? please correct me if I'm wrong because in pp3 in June 08 mark scheme it's the opposite !!! so I'm totally confused Undecidedaa
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i think you are wrong .. because when a reaction lose heat means its exothermic and when it takes heat in then its endothermic when it loses energy then how is the energy takin in ? that happens in endothermic reactions where it takes energy in , exothermic gives energy out .
and MS is correct
unknown 101:
--- Quote from: emi on May 29, 2009, 03:44:50 pm ---
--- Quote ---somebody please explain this to me ...when a reaction cool or lose heat it's endothermic right ? because energy is taken in ? please correct me if I'm wrong because in pp3 in June 08 mark scheme it's the opposite !!! so I'm totally confused Undecidedaa
--- End quote ---
i think you are wrong .. because when a reaction lose heat means its exothermic and when it takes heat in then its endothermic when it loses energy then how is the energy takin in ? that happens in endothermic reactions where it takes energy in , exothermic gives energy out .
and MS is correct
--- End quote ---
emi she got confused cuz in the jun08 there is a reversible reaction and on the top arrow it says cool, so she thought it was endothermic but in the markscheme the froward reaction is exo, im sure she knows the differanc between exo and endo
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