Recent content by DavidC

Yeh that's what i thought... that the non-polar part of ethanol is insignificant because it's hydrocarbon chain is short so therefore ethanol is considered a polar substance. well i was confused. so is it true that the non-polar part of ethanol has an effect too?

Hey thanx alot!! yeh the answer's 43.1 km/h thanx for the explanation. the textbook is New Senior Mathematics 3unit by Fitzpatrick.

Two straight roads meet at an angle of 60 degrees. A starts from the intersection and travels along one road at 40 km/h. One hour later B starts from the intersection and travels along the other road at 50 km/h. At what rate is the distance between them changing three hours after A starts...

yeh chemistry is easy... u just need a big brain to remember all the stuff. anyways we play cards in class and read newspapers and i still survived..... hehe all u need is "conquering chemistry" textbook

who's affinity?? and who da hell is David Chan?

hey mazza r u mary from fortstreet high?

btw.... no i m not david chan mwah hahahaha

hey wilson y did u jig skool today tsk tsk tsk....

As a solvent, ethanol is polar and can therefore dissolve polar substances due to it's hydrogen bond. In the syllabus, it is necessary to explain how ethanol can dissolve non-polar substances as well. If ethanol is polar then how can it dissolve non-polar substances?? :confused: Is it...