Qualification > Sciences

CHEM AND BIO HELP AND TIPS HERE

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elemis:

--- Quote from: Kimo Jesus on June 06, 2010, 02:46:03 pm ---<3

but u dont hav ot extend the  C6H4 and the C2H4 :/ but its up to u

--- End quote ---

LOL !!!

 True what you say about extending the chain, but then again..... why take the risk ?

MasterMath:

--- Quote from: Ari Ben Canaan on June 06, 2010, 02:47:58 pm ---LOL !!!

 True what you say about extending the chain, but then again..... why take the risk ?



--- End quote ---
Whats the hardest exam between 1993-2002?
Ill solve one of them then im done >_>

WARRIOR:

--- Quote from: blackberry on June 06, 2010, 02:46:44 pm ---umm...actually concentration affects the time it takes to form the product provided evrythin else remains the same! :)
so amount of product formed always remains the same!!!! (textbuk is in my face, and buks dont lie!) 8) 8) :P

oh...umm...By the way i got it!!!!!thanks!!!!! ;D ;D

--- End quote ---
it depends , if u use a higher concntaion with same amoutn of zinc , thn the product is same

but if zinc was in excess if u increase concentratin u increase product

Adzel:
Can someone please draw the structure of the alloy BRASS  :)

mdwael:
metal+water=metal hydroxide the hydrogen? in summer 2003 p3 it says its metal hydroxide and hydrogen but why not metal oxide?theyre talking about metals caesium barium and lanathium

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