Sorry wasn't able to log on hereThe exam is tomorrow!! Please tell me all the possible chemistry practicals that can show up on the paper!!
How did u do ?
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Sorry wasn't able to log on hereThe exam is tomorrow!! Please tell me all the possible chemistry practicals that can show up on the paper!!
It was a damn hard paper manSorry wasn't able to log on here
How did u do ?
Yeah it was ... How many marks u think u may lose ?It was a damn hard paper man
Help! Maybe this seems easy, but I don't seem to follow it properlyyy.I am ready to help
ask me anything u need regarding A2 chemistry , biology , and math
Im A living Genius , rare huh ? i know
Yes it must b positive if so .. U understand the whole process way too good I must sayHelp! Maybe this seems easy, but I don't seem to follow it properlyyy.
Okay so for thermodynamics, apparently in Exothermic reactions, when bonds are formed, more energy is released than the amount of energy absorbed in breaking the bonds. However, the value of change in energy for exothermic reactions is negative, but if the change in energy is calculated by "Energy released in products - Energy absorbed in reactants", how can it be negative is the energy released in products is greater than the energy absorbed in reactants? Shouldn't it be positive?
Ok so racemic mixture is a mixture that contains equal amount of both enantiomers ( isomers that rotate a polarised light clockwise and anti )hey everyone , please can someone explain why the answer to this multiple choice questions is B ? How can I decide whether it gives racemic mixture or not?
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202012%20-%20QP/6CH04_01_que_20120307.pdf
question 10(a)
Okay great, thanks! Could you also explain pie and sigma bonds to me plesae?Yes it must b positive if so .. U understand the whole process way too good I must say
But the formula that gives the delta H ( enthalpy change of the reaction) is = to the potential energy of product - the potential energy of the reactant
And since products have less energy and reactant more so the total value will b -ve
Ya that's true , the question asks after the rxn with cn which will have a racemic mixturebut a chiral carbon should have 4 diferent groups , the one with c double bond o has only three different groups there is no 4th one
Pi and sigma ?Okay great, thanks! Could you also explain pie and sigma bonds to me plesae?
Okay understood that! thanks alotLoo
Ya that's true , the question asks after the rxn with cn which will have a racemic mixture
So the c double bond o will be havin cn bonded with an h as I remember ...
Making it have 4 dif bonds
But anyhow since all have that c double bond o , don't waste ur time on that common thing but try and figure the difference
Between all
What do you mean by "an overlap in p orbitals" ?Pi and sigma ?
Sigma is a stronger bond than pi
Pi is a result of an overlap of p orbitals
Sigma-pi bond is the double bond
I dono how we need this exactly
Know how to draw them in case , but I don't think this is to come
U got s , p ,d,f orbitals ...What do you mean by "an overlap in p orbitals" ?
And in June 2012, Unit 1 Question 12, why is C2H6 the product which provides the strongest evidence for a free radical mechanism?
How are you so good at chemistry? Do you study lots for it?
I am ready to help
ask me anything u need regarding A2 chemistry , biology , and math
Im A living Genius , rare huh ? i know
Would I b able to answer igcse maths ?Hi! I just posted this thread: https://www.xtremepapers.com/community/threads/igcse-a-as-level-math-physics.26974/
I hope you can answer my question.. Would I be able to answer the International GCSE Math exam if I only study AS & A level Math?
Would I b able to answer igcse maths ?
I dono
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