Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
Fastal:
--- Quote from: LLawliet81 on May 09, 2010, 04:33:16 pm ---Hello all, i'm newbie here...
I take A-Level for Biology on this May-June session and still need some helps.
May i ask my doubt about how to answer the question, whether the answers are short and simple like in the mark scheme or we must explain more on every point in mark scheme ? And what is the meaning of word "reference" in mark scheme?
Bonus Question: How to answer the last part (looong essay part) of P4 ?
Need your help, because my school teacher never give us explanation about it.
Thx before and sorry if my questions are out of the thread :)
--- End quote ---
this is the igcse forum
i think you should go here-https://studentforums.biz/index.php/board,82.0.html
holtadit:
--- Quote from: Fastal on May 09, 2010, 05:01:09 pm ---this is the igcse forum
i think you should go here-https://studentforums.biz/index.php/board,82.0.html
--- End quote ---
Thanks +rep.
The Golden Girl =D:
--- Quote from: A@di on May 09, 2010, 03:19:48 pm ---Insoluble compounds.
Chlorides, bromides, iodides of silver and lead.
Sulfates of Calcium, barium and lead.
All hydroxides except those of group 1
All carbonates except those of group 1
Metal oxides except group 1 and 2s.
--
Flammable : Most alkanes, kersoene, petrol and naturally occurring oils.
--- End quote ---
thx :D
Baladya:
--- Quote from: A@di on May 09, 2010, 03:19:48 pm ---Insoluble compounds.
Chlorides, bromides, iodides of silver and lead.
Sulfates of Calcium, barium and lead.
All hydroxides except those of group 1
All carbonates except those of group 1
Metal oxides except group 1 and 2s.
--
Flammable : Most alkanes, kersoene, petrol and naturally occurring oils.
--- End quote ---
OMG I freakin h8 this and the Cations/Anions Test man >:( Can't manage to memorize them :( :P
$H00t!N& $t@r:
I need help with moles!
http://www.freeexampapers.us/IGCSE/Chemistry/CIE/2005%20Jun/0620_s05_qp_3.pdf
Q4d! I got the moles for CaSO4 and H20 (0.58 mol and 1.16 mol, respectively) but I'm confused with the x. Do you add the moles for CaSO4 and H20 to get x ???
Secondly, http://www.freeexampapers.us/IGCSE/Chemistry/CIE/2003%20Nov/0620_w03_qp_3.pdf
Q5d! (moles again) My question is how do you know that that 0.125 mol of SO2Cl2 was formed? :-\
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version