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hahahah awh thankss ur genius urself too no doubt in that ^.^
hahha I am Thanks xD
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hahahah awh thankss ur genius urself too no doubt in that ^.^
what was the answer for question abt hess's law in section A.....was it A or B??hahha I am Thanks xD
what was the answer for question abt hess's law in section A.....was it A or B??
yeh i thnk that one i chose...B ryt?it was delta H1 - Delta H2
yeh i thnk that one i chose...B ryt?
First of all, I agree this paper was way different and more harder compared to all the past papers I've seen!
And I thought it was asking for hydrated crystals so it was going backwards so
I wrote -DeltaH1 + Delta H2.. I have no clue though
They didnt tell us to draw lithium iodide... :/ The told us to draw the lithium ion and the iodine ion... :/My worse mistake xD
Drawing Lithium Iodide as a covalent bond xD---I mean How stupid was I xD
it was asking for formation of hydrated crystals, so it is an exothermic reaction. the other 2 are endothermic as u form dehydrated sodium something (cant rmember the compound name exactly). delta h1 = delta hf + delta h2. re arrange, it becomes delta hf = delta h1 - delta h2First of all, I agree this paper was way different and more harder compared to all the past papers I've seen!
And I thought it was asking for hydrated crystals so it was going backwards so
I wrote -DeltaH1 + Delta H2.. I have no clue though
They didnt tell us to draw lithium iodide... :/ The told us to draw the lithium ion and the iodine ion... :/
What about carbon 13?yeah you are right C -12 with 6 protons.
What about carbon 13?
Guyssssss.....for jan 2012, the curve was 54/80 minimum for an A...so take it easy....I thnk ours will be same yeeeehhh !!
http://www.edexcel.com/iwantto/I want to Tasks/1201 GCE Units Grade Boundaries (Home Int).pdf
CHECK !
me tooooo..Guys guys guys guys guys guys guys one Q.. what in the name of God was the next element wen Nitrogen and some kinda "e" thingy broke down, u knw the question bout Hydrogen isotopes?
hhahaha i wrote CARBON :3
yeah,nw i knw dat my exam wasnt THAT BAD!!!!!once you think about it..it wasn't THAT BAD
i wrote homolytic fission n condition is UV radiation!I wrote for type of reaction.....free radical formation...is it ok?
i jst wrt homolytic fission!Free radical substitution ? I doubt that cus it asked for step 1 : I wrote xD-- free radical Homolytic fission
Well I don't know which is right or wrong xD
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