OMG!
american idol is like SOOOO GOOD!
i dunno, but i think its like this season only.. ^^
or they are just showing all the talents.. haha..
cos i used to hate watching auditions, but i've been sitting down, listening to ALL of them, AND I LOVE MOST OF THEM!
its gonna be SO difficult to choose one to support till the end.. haha..
there's a carrie look-a-like! haha..
but she has a really weird song choice, and then, she CANNOT put on make up! so UGLY!
OH NO!! i LOVE josiah, but he's crumbling at the stress...
i wanna help him la.. T.T
YAY! he's singing NOT SO WELL! ><
BUT HE MADE IT THROUGH!! ^^
okie.. i have to study chem today.. HELP!
i was baking cookies and preparing the flowers for tmr..
gonna have a BIG problem tmr..
haha..
anws, gonna type some chem stuff here to revise!
exothermic is bond making, -ve, reactant has higher energy than product, temp of mixture will drop. (it doesnt make sense, but at least i group it into that..)
reason why the product has a lower enrgy level than the reactant is because heat is released to the surroundings as the reaction takes place, thus the chemical content decreases.
endothermic is bond breaking, +ve, reactant has a lower energy level than the product. therefore, the temp of the mixture will rise.
reason why the product has a higher energy level is because heat is absorbed from the surroundings when the reaction takes place, thus the chemical energy content increases. ^^
omg, i hope i can rmb at least that.. -.-ll
why must the mixture be heated before the reaction occurs?
heat must be absorbed to overcome the activation energy.
heat can be removed once the reaction starts.why?
cos if the reaction is exothermic, the energy evolved is sufficient for the experiment to keep going.
okie..
im going off..
but.. gonna wish everyone out there, whether couples or singles,
HAPPY VALENTINES DAY!
