What technique do you use for exam revision?

[crayolé]

Also I find if I know the answer to a question i don't even bother calculating or answering it fully.

Like a question will say weak acid HOBr has concentration 0.5 M find pH

Im like gah -log(sqrt(0.5*cosntant))) saves time.

Also, writing out explanations to questions like "why can't Mg2+ make Mg in aqueous solutions when electrolyed" i just write H20 Pref red (Water preferentially reduced). When I check the exam I'll see if it corresponds to what i've said. This way you can get through exams really fast and see if you know everything. No sense writing out everything... if you need that kinda of help, well, thats for humanities.

Or for more calculation explantion thingys, like "why does nuclear fission result in more energy per gram compared to coal burning?" I'll say

related to E = mc^2

and draw up arrows to show increase in mass means HUGE ARROW UP in energy because c^2 = HUGE NUMBER

Yeah haha I'm pretty much doing the same thing right now.
I've developed some kind of superhuman reflex for weak acid pH questions, can usually norris up those answers in less than a second :j

Whats your full explanation for the e=mc^2 concept?

[Xavier1234]

Also I find if I know the answer to a question i don't even bother calculating or answering it fully.

Like a question will say weak acid HOBr has concentration 0.5 M find pH

Im like gah -log(sqrt(0.5*cosntant))) saves time.

Also, writing out explanations to questions like "why can't Mg2+ make Mg in aqueous solutions when electrolyed" i just write H20 Pref red (Water preferentially reduced). When I check the exam I'll see if it corresponds to what i've said. This way you can get through exams really fast and see if you know everything. No sense writing out everything... if you need that kinda of help, well, thats for humanities.

Or for more calculation explantion thingys, like "why does nuclear fission result in more energy per gram compared to coal burning?" I'll say

related to E = mc^2

and draw up arrows to show increase in mass means HUGE ARROW UP in energy because c^2 = HUGE NUMBER

Yeah haha I'm pretty much doing the same thing right now.
I've developed some kind of superhuman reflex for weak acid pH questions, can usually norris up those answers in less than a second :j

Whats your full explanation for the e=mc^2 concept?

e=mc^2. when for example initial mass is 1kg. you get 1 x speed light^2. if you increase that mass even just by 0.1, given that 1.1kg is multiplied by c^2, the increase in energy produced is so much greater.

p.s. good technique btw. i must try it soon.