Qualification > Sciences
IGCSE CHEMISTRY DOUBTS HERE !!!!
~HyDrOgEn~:
--- Quote from: Blizz_rb93 on October 10, 2010, 11:49:02 am ---Can anyone tell me what are the main topics focused in chemistry paper 6? thank u
--- End quote ---
KNow all the chemical tests for metals and non metals , as well as hydrocarbons !! , you must know the bromination experiment and the potassium permangentae one , any help ? ;D
The Golden Girl =D:
Chromatography
the List of solubility of salts
Titration
how to make Insoluble salts
i.e.ALL the Separating techniques
Hmm know how to use your Imagination in a Scientific*stuff from the Syllabus * way for the LAST Question in the paper ;)
~Dazzling Star~:
can anyone explain the past paper question of chemistry ,year 1997 november question no. 4 part f only? :-\ ???
elemis:
I dont have access to those papers. Can you take a screenshot and put it up here ?
~Dazzling Star~:
--- Quote from: Ari Ben Canaan on January 11, 2011, 04:45:35 pm ---I dont have access to those papers. Can you take a screenshot and put it up here ?
--- End quote ---
i'll type it..
4 a. 4.2 g of cerium reacted with oxygen to form 5.16g of an oxide of cerium.complete the following to determine the formula of this oxide
1 . number of moles of cerium used
2 . mass of oxygen that reacted
3 . number of moles of oxygen atoms in oxide
4 . ratio by moles of cerium atoms to oxygen atoms
5 . formula of cerium oxide is
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