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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 354005 times)

Offline Raywin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1980 on: May 24, 2010, 06:20:02 pm »
Quote from: the golden girl on May 24, 2010, 05:27:32 pm
A@di i stil didn't get Q 3  :-[ :-[

 i kno i'm askin alot but plz help lol

i also have this

same year Q16   :-[ :-[ :-[ :-[ :-[ :-[ :-[ :-[ :-[

Same here!! I dont get it!! :(
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Offline WARRIOR

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1981 on: May 24, 2010, 06:20:42 pm »
tricky question

ASNWER IS D

why?
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Offline The Golden Girl =D

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1982 on: May 24, 2010, 06:21:03 pm »
Quote from: Baladya on May 24, 2010, 06:19:12 pm
what is the universal indicator?

i think it is meant to be a litmus paper  ???

A@di or VIN anyone help us  ???
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Offline Lariemeeva

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1983 on: May 24, 2010, 06:22:19 pm »
Oct/Nov 2009 P1

Quote
Q13, why is the UI colourless for OH-?

Also
I don't understand  Q26....

God, it all about the colours, can't anyone give me the rules of colours? I think everyone really needs that...
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1984 on: May 24, 2010, 06:23:18 pm »
Quote from: Kimo Jesus on May 24, 2010, 06:20:42 pm
tricky question

ASNWER IS D

why?

it says explotion... so what happens is a VERY fast reaction. Very fast that finishes very fast ;)
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Offline Ghost Of Highbury

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1985 on: May 24, 2010, 06:23:50 pm »
i gotta think about that universal indicator too. the others are here

15) hydrogen , it doesnt emit CO2, rest do , uranium doesnt need O2

28) Copper - brown solid
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Offline Ghost Of Highbury

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1986 on: May 24, 2010, 06:25:03 pm »
Quote from: Lariemeeva on May 24, 2010, 06:22:19 pm
Oct/Nov 2009 P1

Also
I don't understand  Q26....

God, it all about the colours, can't anyone give me the rules of colours? I think everyone really needs that...

compounds of transition metals are colored. cud be B(white) or C (red)

they are metals thus their electrical conductivity is high. so C
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Offline Ghost Of Highbury

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1987 on: May 24, 2010, 06:26:04 pm »
well i know wat universal indicator is, it displays a range of colors when put in acid or alkali. blue/purple for alkali, red orange for acid. green for neutral. google it. and im still thinking abt that q..ill PM ari and nid.
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1988 on: May 24, 2010, 06:27:06 pm »
Quote from: the golden girl on May 24, 2010, 06:21:03 pm
i think it is meant to be a litmus paper  ???

A@di or VIN anyone help us  ???

WAIT I HAV POSTED THIS ONE EARLIER THIS DAY !!.. LEMME CHECK !! :D
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1989 on: May 24, 2010, 06:27:42 pm »
Can u tell me any 'weird' monemers we need to know ... (stuff like Acrylonitrile 0.o )
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Offline Ghost Of Highbury

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1990 on: May 24, 2010, 06:27:51 pm »
Quote from: Baladya on May 24, 2010, 06:23:18 pm
it says explotion... so what happens is a VERY fast reaction. Very fast that finishes very fast ;)

yes, correct. Hydrogen combustion happens extremely fast..its like BOOM!! lol....and once its finished, the speed of reaxn drops!
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Offline WARRIOR

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1991 on: May 24, 2010, 06:28:13 pm »
Quote from: Baladya on May 24, 2010, 06:23:18 pm
it says explotion... so what happens is a VERY fast reaction. Very fast that finishes very fast ;)

hmm thanks !
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Offline Lariemeeva

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1992 on: May 24, 2010, 06:28:22 pm »
Quote from: A@di on May 24, 2010, 06:25:03 pm
compounds of transition metals are colored. cud be B(white) or C (red)

they are metals thus their electrical conductivity is high. so C

Thanks, what about Q13??
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Offline jellybeans

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1993 on: May 24, 2010, 06:29:04 pm »
heyyyyy,does anybody know where i can get CHEM O/N 06 paper without the blank questions? X(
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1994 on: May 24, 2010, 06:29:51 pm »
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