kingam (Offline)

Hey good luck for the paper for chemistry... if you could get back to me on how it went and if you could help me a bit it would be much appreciated.. Thanks in advance

it was a one mark question though lmao

Probably about 46-48 for an A
Yeh youll dego get the mark for working out, i completely got that q wrong :| and managed to work it out AFTER the exam lol

yh lol how much do you think it will be for b or a, u know that question for x if i got working right but answer wrong u ifnk il get the mark lol,

yh i reckon i've lost about 10 marks, so hopefully an A, and hopefully grade boundaries are low! haha

im hoping for an A aswell lol, looking back i think i have got 44-47 marks lol wbu ?

I reckon youll get 2/3, cus u mentioned induced dipoles, hopefully ill still get an A haha, wt u hoping for?

i made a dumb mistake for that x question answer was 2 i wrote 1 lol , even though got the right working, how many marks do you think i would get for that van der walls i wrote caused by uneven disturbance of electrons, weak attractive forces between induced dipoles in neighbouring molecules. i messed to mark mole aswell i worked out the moles ofr calcuim hydroxide not oxide only.

Calcium hydroxide queston = I put that it is used to nuetralise acid in soils and excess can cause soil to become alkaline

Van der waals forces:

.Movement of electrons generates an instantaneous dipole
.The instantaneous dipole induces other dipoles in negihbouring atoms
.The 2 dipoles generate a weak temporary force of attraction between the atoms

i lost 3 marks for the 6mark q cus i put that chlorine reacts with bromine even though it doesn't, because its bromine and not bromine, but got the stuff about iodide right

wt did u get for the HxA question- what x=? and for the 2 mark moles question?

yh ok i can't remember all the questions though...