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CHEM AND BIO HELP AND TIPS HERE

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MasterMath:

--- Quote from: Dana on June 06, 2010, 04:55:33 pm ---you did thanks loads :D what abt calcium does it form a hydroxide or oxide?

--- End quote ---
Hyrdoxide .. always remember lime water :P ..

Lariemeeva:
Why is everyone misunderstanding it. Fine, let me rephrase the whole thing in a language that everyone can understand.
I know like hell that cracking goes like this [Alkanes --> Alkene + Hydrogen]. This part understood?

Now in the Mark scheme they say that the answer to my question should be Alkane --> Alkene + Alkane + Hydrogen.

Get it? Now I want to know why they stated Alkane as a product in cracking. I'm not asking for a miracle.

So here's the link, and I hope a sensible person can answer me.
https://studentforums.biz/index.php/topic,54.msg253414.html#msg253414

MasterMath:

--- Quote from: Raywin on June 06, 2010, 04:58:07 pm ---Umm, i remember seeing MgOH.. O.O  :S

--- End quote ---
IM 100% sure its MgO :P

8T:
Could someone please explain may june 09 paper 32 q 5 b
I know it's for instance K3PO4 or T3 PO4.. but the other 2 marks not quite so any help??

MasterMath:

--- Quote from: Lariemeeva on June 06, 2010, 04:58:39 pm ---Why is everyone misunderstanding it. Fine, let me rephrase the whole thing in a language that everyone can understand.
I know like hell that cracking goes like this [Alkanes --> Alkene + Hydrogen]. This part understood?

Now in the Mark scheme they say that the answer to my question should be Alkane --> Alkene + Alkane + Hydrogen.

Get it? Now I want to know why they stated Alkane as a product in cracking. I'm not asking for a miracle.

So here's the link, and I hope a sensible person can answer me.
https://studentforums.biz/index.php/topic,54.msg253414.html#msg253414

--- End quote ---
First chill off dude .. >_>
And Yes sometimes Alkane can be cracked to give SMALLER CHAIN ALKANE ... this is just HOW IT IS .. >_<

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