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Recent content by Abdullatif Dablouk

A
Chemistry paper1 [discussion here] after exam

Btw people, what was the answer for the question that asked..what does solid X contain? they say it produces a green precipitate and an alkaline gas. some people in my school said the answer was NH4+ and Fe+2 but how is it possible for a solid to have TWO POSITIVE ions?? i personally answered...
- Abdullatif Dablouk
- Post #6
- May 25, 2010
- Forum: O-Levels / GCSEs / IGCSE
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Chemistry Revision

Re: Chemistry Paper 6 Revision Btw man..for the test for protein KOH may be used instead of NaOH and then two drops of CuSO4 are added (same result obtained) u could also include the emulsion or ethanol test for fats btw it is a very kind thing of you 2 post this nd thnks alot :)
- Abdullatif Dablouk
- Post #32
- May 17, 2010
- Forum: O-Levels / GCSEs / IGCSE
A
Chemistry M/J 2002 Paper 1

Dear ismail breiwish, What Adham-amr said about question 3 is right. About question 4, liquid X is placed in a cooling mixture (in fact it is a mixture of water and melting ice) and the temperature of the liquid is being measured. The graph plotted on the right indicates that the temperature of...
- Abdullatif Dablouk
- Post #3
- May 2, 2010
- Forum: O-Levels / GCSEs / IGCSE

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