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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 333149 times)

Offline K_M

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1350 on: May 21, 2010, 11:19:05 am »
Quote from: gumnam on May 21, 2010, 08:03:27 am
hey the 1st q was wat similarity can u c in the two pics related to nutrition  .....sumthing like this rite ????

I wrote that both of their teeth are modified according to the food they eat! Im not quite sure if its right though!
Umm what differences did you write for the sheep and dog tooth?
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Offline guMnam

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1351 on: May 21, 2010, 11:39:37 am »
Quote from: K_M on May 21, 2010, 11:19:05 am
I wrote that both of their teeth are modified according to the food they eat! Im not quite sure if its right though!
Umm what differences did you write for the sheep and dog tooth?
one has big teeth and one has small teeth...then one has pointed sharp teeth and the others teeth were not pointed......they asked for visible diferences :D

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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1352 on: May 21, 2010, 11:44:32 am »

Bio paper was so STUPID !! ;D ;D .. i felt like i was giving simplified paper3 .. i wonder how will paper 3 be.. n who the hell counts seeds and spines !?! jobless ppl. :P
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Offline The Golden Girl =D

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1353 on: May 21, 2010, 01:58:20 pm »
i found bio pp6 fine  :-X  ,but some Qs were pain in the neck  >:(
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Offline rhea

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1354 on: May 21, 2010, 03:06:37 pm »
hey can someone tell me how one recognises a compound that has BOTH ionic and covalent bonds?
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Offline Raywin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1355 on: May 21, 2010, 03:14:09 pm »
Hey guys, I got a doubt in chem - electrolysis of conc aqueous sodium chloride, wht is the product in the cathode? I think it is hydrogen but the marking scheme in the multiple choice paper O/N 06 says tht it is sodium hydroxide? :S How is tht possible? Thx in advance.. :D
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Offline The Golden Girl =D

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1356 on: May 21, 2010, 03:15:27 pm »
 la2 ...listen

in the cathode it's hydrogen ..in the anode it's chlorine ..and in the bottom of the beaker it is sodium hydroxide  ;)
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Offline Raywin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1357 on: May 21, 2010, 03:17:00 pm »
Quote from: guMnam on May 21, 2010, 07:57:16 am
i got 9.8sumthin well there would be a range i am sure :D

I got 9 :S how do do this question?
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Offline aangel42

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1358 on: May 21, 2010, 03:17:19 pm »
Quote from: mdwael on May 21, 2010, 07:57:03 am
what about the graph? was it a histogram? a barchart? or a line?
I did a line but everyone is telling me it should be bar or histogram  :-\

i made a line too!!! :( but i think it was supposed to be a bar graph :(
and also, did we have to have the units as cm^2 for area??? i forgot. but YEAH i put 10.8 too! yay :)
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nid404

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1359 on: May 21, 2010, 03:17:36 pm »
Quote from: SNA on May 19, 2010, 03:03:52 pm
hey!Im sorry to just barge in like this,
there's a mistake on your drawing!  :o
i dont know if you know this, but when it comes to drawing, we should not make like a line above another line.
the lines should be smooth. n yea!they will penalize the mark if drew double line.
i didnt know about this too,until we went through the examiners' report!
hehe... :D


Yes important...no double lines...CIE doesn't appreciate. she's right
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Offline Raywin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1360 on: May 21, 2010, 03:19:12 pm »
Quote from: the golden girl on May 21, 2010, 03:15:27 pm
la2 ...listen

in the cathode it's hydrogen ..in the anode it's chlorine ..and in the bottom of the beaker it is sodium hydroxide  ;)

ohh k.. thx.. :D
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Offline Burhan.arshad

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1361 on: May 21, 2010, 03:34:32 pm »
any important topics for chemistry paper?
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nid404

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1362 on: May 21, 2010, 03:45:55 pm »
Check the syllabus it has a glossary
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Offline K_M

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1363 on: May 21, 2010, 03:46:29 pm »
Quote from: guMnam on May 21, 2010, 11:39:37 am
one has big teeth and one has small teeth...then one has pointed sharp teeth and the others teeth were not pointed......they asked for visible diferences :D



Kay, i wrote the same! =P
And what about the penicillin question? I wrote our WBCs accept the antibiotic and begin producing antibodies that inhibit bacterial growth by not letting them form their cell walls. Or something to that effect. Is it right?=/
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1364 on: May 21, 2010, 03:52:52 pm »
yea u get definitions all the time ! every time a different one ..  its always there under specific topics .. good thing they give them in the syllabus
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