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Chem Paper1
what do u mean i ddnt get it?? :S, i answered ur question- jafar
- Post #16
- Forum: O-Levels / GCSEs / IGCSE
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Chem Paper1
only Transition metals have various oxidation states thats why they have different names such as Fe(III), Fe(II), Cu(II)- jafar
- Post #14
- Forum: O-Levels / GCSEs / IGCSE
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Chem Paper1
b/c it could both be reduced and oxidised, for example, Fe 2+ can oxidise and form Fe 3+ Fe 2+ can reduce and form Fe (Iron), this is such an ezy question, much more trickier questions can cum in xam, u shud study hard!!- jafar
- Post #10
- Forum: O-Levels / GCSEs / IGCSE
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Chem Paper1
this means that 1 and 3 contain reducing agents, but as zohaib said u should ignore that as u r only asked about oxidising agents and by mixing potassium iodide u noe dat 1 and 2 contain oxidising agents, so oxidising agents will be 1 & 2, understand??- jafar
- Post #8
- Forum: O-Levels / GCSEs / IGCSE
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Chem Paper1
yeah it is bt it dosent oxidise, A reducing agent always oxidises nd an oxidising agent always reduces!!!- jafar
- Post #6
- Forum: O-Levels / GCSEs / IGCSE
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Chem Paper1
potassium iodide is a reducing agent and when its oxidised it changes color from colourless to red/brown, only in 1 and 2 is its color changing, so it means that solutions 1 and 2 contain oxidising agents whih oxidise KI... now do u understand- jafar
- Post #3
- Forum: O-Levels / GCSEs / IGCSE
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MEthane
we can also get hydrogen by electrolysis ov dilute Sulphuric Acid- jafar
- Post #4
- Forum: O-Levels / GCSEs / IGCSE
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Random Jokes
George Bush in a primary school... George Bush goes to a primary school to talk about the war. After his talk, he offers question time. One little boy puts up his hand and George asked, What is your name? Bob And what is your question, Bob? I have 3 questions. First, why did the USA invade... -
Biology ATP; DiscussiOn
i said stopwatch for a reason, when u r using a stopwatch, u see time changing faster than in normal watches, this gives u a feelin that u shoul do the paper faster!!- jafar
- Post #151
- Forum: O-Levels / GCSEs / IGCSE
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Basic Oxides
as i told u basic oxides are usually metal so , theser will form acidic oxides not basic as these are non metals- jafar
- Post #4
- Forum: O-Levels / GCSEs / IGCSE
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Random Jokes
Man : You remind me of the sea. Woman : Because I'm wild, romantic and exciting? Man : NO, because you make me sick. Wife : You tell a man something, it goes in one ear and comes out of the other. Husband : You tell a woman something: It goes in both ears and comes out of the mouth. Mary ...