Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 330305 times)

Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3225 on: June 07, 2010, 09:10:23 pm »
i think the answer is B.this is how i think would be the reason. for P, the liquid moves to the left as soda lime adsorbs the co2 which lowers air pressure in test tube. thus, higher air pressure outside tube pushes liquid towards the test tube. for Q,air pressure inside test tube and outside is the same,so the liquid stays at the same place.the glass beads did not effect the experiment.
Yes & No for the first part True but 4 the 2nd Co2 is  released but not absorbed u would assume that it would move to the right but NO because dnt 4get oxygen is absorbed :)
Hope tht helped!
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3226 on: June 07, 2010, 09:10:31 pm »
Which one and why plz ???
conduction and support. conduction is like transport of water and mineral ions.
support is because, w/o water the plant will wilt. with water, the plant is like fresh and straight etc

Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3227 on: June 07, 2010, 09:12:27 pm »
Yes & No for the first part True but 4 the 2nd Co2 is  released but not absorbed u would assume that it would move to the right but NO because dnt 4get oxygen is absorbed :)
Hope tht helped!
;D that was what i meant by air pressure in test tube stays the same as carbon dioxide released but O2 absorbed. but you explained it better. thank you!  ;)

Offline Helium

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3228 on: June 07, 2010, 09:12:54 pm »
Ok Thanks kstina and SNA, :D

i was like absorbtion :P

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Offline ksitna

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3229 on: June 07, 2010, 09:14:38 pm »
Ok Thanks kstina and SNA, :D

i was like absorbtion :P



no prob ;)
take whatever you want and give nothing back :)

Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3230 on: June 07, 2010, 09:14:45 pm »
Yes & No for the first part True but 4 the 2nd Co2 is  released but not absorbed u would assume that it would move to the right but NO because dnt 4get oxygen is absorbed :)
Hope tht helped!

There is no significant role of the beads..right?

Offline Helium

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3231 on: June 07, 2010, 09:17:21 pm »
There is no significant role of the beads..right?

NEW NAME ::)

COOL 8)
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Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3232 on: June 07, 2010, 09:17:39 pm »
There is no significant role of the beads..right?
nope..just to confuse or just to make the experiment look more pretty..haha.. :P

Offline SNA

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3233 on: June 07, 2010, 09:18:36 pm »
Ok Thanks kstina and SNA, :D

i was like absorbtion :P


no prob! :D

Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3234 on: June 07, 2010, 09:19:13 pm »
nope..just to confuse or just to make the experiment look more pretty..haha.. :P

Ha ha :D right, experiment looks pretty .. XD

Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3235 on: June 07, 2010, 09:19:35 pm »

Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3236 on: June 07, 2010, 09:20:46 pm »
;D that was what i meant by air pressure in test tube stays the same as carbon dioxide released but O2 absorbed. but you explained it better. thank you!  ;)
Hah sorry & thanks i didnt quite get it but nw i do :)
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3237 on: June 07, 2010, 09:21:44 pm »
There is no significant role of the beads..right?
Nop :)
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3238 on: June 07, 2010, 09:33:50 pm »
Could someone please help me check my answers here are the questions sorry they are many at once hope they are clear in attachment ??
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Offline 8T

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #3239 on: June 07, 2010, 09:40:24 pm »
Umm may june 09 q9 could someone tell me briefly why is it A ?
Link:www.freeexampapers.us/IGCSE/Biology/CIE/2009%20Jun/0610_s09_qp_1.pdf
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