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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 353986 times)

Offline High-R

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1260 on: May 18, 2010, 09:04:10 am »
i meant +Rep*.lol.... :P
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Offline The Golden Girl =D

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1261 on: May 18, 2010, 09:12:20 am »
Quote from: Kimo Jesus on May 18, 2010, 08:58:32 am
naah

im doin every last question from every past paper lol

then ill do all teh analyis :P

bbye :) wish me luck and pray for me ! :-\

cool  then lol

Talk to you later ........ sure thing kimo  ..............By the way when u go for the exam just chill k ....don't be nervous  ;)

gd luck to u
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Offline PeaceMaker

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1262 on: May 18, 2010, 09:36:54 am »
How does one work out the volume of a certain thing on a graph after a certain time? how does one predict the temperature and last but not least how would you sketch the graph after certain amount of a certain acid is used, i mean how do you put the line and stuff.

And thats it, now i have to just memorize the table fully, read kimbo jesus's notes, eat, pray and go kill the exam.
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Offline CatAly$t

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1263 on: May 18, 2010, 01:10:32 pm »
how do we get copper from malachite???
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nid404

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1264 on: May 18, 2010, 01:17:38 pm »
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Offline WARRIOR

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1265 on: May 18, 2010, 03:28:49 pm »
woah

I POWNED THE EXAM :d

thank you lord!

thank u all for ur help
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Offline guMnam

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1266 on: May 18, 2010, 03:58:19 pm »
Quote from: Kimo Jesus on May 18, 2010, 03:28:49 pm
woah

I POWNED THE EXAM :d

thank you lord!

thank u all for ur help
:D:D:D:D:D
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Offline bulono

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1267 on: May 18, 2010, 10:11:59 pm »
how to extract copper from copper carbonate......
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1268 on: May 18, 2010, 10:28:38 pm »

heat copper carbonate , carbon dioxide evolved, left is copper oxide

Reaction::

CuCO3 (s) ===> CuO (s)   +  CO2 (g)

Pass hydrogen gas oven red hot copper oxide, combines with oxygen to form water (steam)

Reaction::

CuO (s)  +  H2 (g) ===>  Cu (s) +  H2O (g)
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Offline Mr.Lonely

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1269 on: May 19, 2010, 07:47:33 am »
Hey . guys .. i have the bio paper 6 tmrw . and i dnt undestand a thing.. how do i draw .. the section of a garlic or apple or spmething .. i still dont get it at all ??? paper 6 bio may june 2009 biology number 1  ?
rsvp
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Offline Kim

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1270 on: May 19, 2010, 08:58:10 am »
Quote from: Mr.Lonely on May 19, 2010, 07:47:33 am
Hey . guys .. i have the bio paper 6 tmrw . and i dnt undestand a thing.. how do i draw .. the section of a garlic or apple or spmething .. i still dont get it at all ??? paper 6 bio may june 2009 biology number 1  ?
rsvp

lol the garlic question that was my board paper
i remember i had to draw it thrice to get it right the complete examination hall was erasing and drawing the last half hour
fun day lol
well u have to be very neat in ur drawings make sur to make it enlarged if it is said in the question the difference between 2 membranes should be the same as the diagram like if in the diagram sum parts are thick and sun thim that is how ur drawing shud have as well
if they have asked u to label dont forget to do it
just make ur drawing as neat as u can
if u wanna know more tell me and practice past papers
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After all is said and done, more is said than done.

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Offline Mr.Lonely

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1271 on: May 19, 2010, 09:25:53 am »
.. i dunno how to draw it .. like cn  u email me the drawing .. plz .. if u need my email ..i guess u cn find it on my profile .. .Thanks a lot .. i just cant draw it
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Offline Kim

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1272 on: May 19, 2010, 09:29:41 am »
ok i cant do it now but ill do it by today il send it by evening
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.

Offline Mr.Lonely

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1273 on: May 19, 2010, 09:38:04 am »
okay. Thanks a lot .. am counting on you 4 that  ,, am gna w8 ,,, Take care
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Offline Kim

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1274 on: May 19, 2010, 09:51:10 am »
Quote from: Mr.Lonely on May 19, 2010, 09:38:04 am
okay. Thanks a lot .. am counting on you 4 that  ,, am gna w8 ,,, Take care

i m really sorry but i just cant seen to get it right
so i cant help ya there
and i have to study for my paper but ill see if i can get it
maybe sum1 else can help ya
sorry
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After all is said and done, more is said than done.

By the time a man realizes that maybe his father was right, he usually has a son who thinks he’s wrong.

The early bird may get the worm, but the second mouse gets the cheese.
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