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CHEM AND BIO HELP AND TIPS HERE

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MasterMath:

--- Quote from: 8T on June 06, 2010, 05:14:23 pm ---Could someone pleaaaaaaaase answer i quoted above ? :S??

--- End quote ---
YOu hvave to show that you know that the reaction ends at the 12 cm3 and the other i dont know :P i dont remember the question 8-)

igext:

--- Quote from: Ari Ben Canaan on June 06, 2010, 05:11:47 pm ---LOL ! Okay, your welcome.  The Lion exists to serve and protect his domain.  ;)

I'm always watching.

--- End quote ---
what conditions of rxns do we need to know other than contact and haber processes?
especially organic equations (e.g.cracking and polymerisation) do we need to know conditions for these?

MasterMath:

--- Quote from: igext on June 06, 2010, 05:17:09 pm ---what conditions of rxns do we need to know other than contact and haber processes?
especially organic equations (e.g.cracking and polymerisation) do we need to know conditions for these?

--- End quote ---
haber : 450C and 200 atm .. iron as catalyst ( Finely divided)
Contact: 450C 2 atm.. Vanadium (V) oxide
Cracking : Al2O3/SiO2 500C and 10-12atm
for adding H2O to ethene Phosphoric acid 300C 70 atm
For adding H2 to ethene Ni 200C
Correct me if im wrong!

8T:

--- Quote from: MasterMath on June 06, 2010, 05:16:52 pm ---YOu hvave to show that you know that the reaction ends at the 12 cm3 and the other i dont know :P i dont remember the question 8-)

--- End quote ---
Here's the link may june 09 5 b pleaaaaaase explain..
www.freeexampapers.us/IGCSE/Chemistry/CIE/2009%20Jun/0620_s09_qp_3.pdf
P 32

Vin:

--- Quote from: 8T on June 06, 2010, 05:21:07 pm ---Here's the link may june 09 5 b pleaaaaaase explain..
www.freeexampapers.us/IGCSE/Chemistry/CIE/2009%20Jun/0620_s09_qp_3.pdf
P 32

--- End quote ---

It;s been solved earlier, i need to look..

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