Unit 3B Chemistry :) How was the exams? Comment here :P

[solidfire]

to clean off any iodine.. i wrote neutralise any iodide ion/iodine... :-/

i wrote it ionises the iodine stronger! im so stupid x( i was nervous

 

[solidfire]

im just gonna go around asking everyone this lol, bear with me but um.. do you remember how many marks this was worth? Im hoping 1! :/

i remember 2 marks

 

[jtbteddy]

im just gonna go around asking everyone this lol, bear with me but um.. do you remember how many marks this was worth? Im hoping 1! :/

just 1, both this question and the one of calcium chloride being anhydrous were worth 1 each

 

[Missyyy]

just 1, both this question and the one of calcium chloride being anhydrous were worth 1 each

That gives me hope :')
I SEE LIGHT!!!!!!!!!!!

 

[jtbteddy]

That gives me hope :')
I SEE LIGHT!!!!!!!!!!!

answers my question too please

 

[saba1996]

well if the spelling gives a whole meaning of a completely existent different word then maybe yes..if not like u said the vigorous spelling was wrong by only adding a 'u' then dont wrryyy...this info is written in the markscheme so u can chill and focus on the upcoming units the worth 40% each this unit only worths 20%

Thanks you

 

[Missyyy]

answers my question too please

oh.. sorry about that!
well Im not really sure haha
Its supposed to remove any unreacted Iodine so I think you should be given the mark for impurities..

 

[Missyyy]

answers my question too please

but I really cant say.. We'll just have to wait
InshaAllah I hope we ALL get High A's..

 

[pk1947]

IT WAS 55!!!!!!!!!!!!!!!!!!!!!!!!!

 

[Missyyy]

IT WAS 55!!!!!!!!!!!!!!!!!!!!!!!!!

Why would you say that ? D:

 

[pineapplelynn7]

hey guys, did the calcium carbonate question ask for its name or formula?

 

[meisen]

on the first question after the flame test, the second one's last column said "Sulphur was absent"

Man! i even rechecked the paper, like twice. -_- how can i not see it? :S

 

[qstar.inc]

im just gonna go around asking everyone this lol, bear with me but um.. do you remember how many marks this was worth? Im hoping 1! :/

it was 1

 

[qstar.inc]

hey guys, did the calcium carbonate question ask for its name or formula?

formula

 

[qstar.inc]

Man! i even rechecked the paper, like twice. -_- how can i not see it? :S

that was a simple trick on the paper

 

[Lost_Life]

i think its wrong cuz the 5 should be negligible compared to the 50

they said assume that the density of water is 1.. so it should be 50

 

[DC1313]

yeah zinc has a negligible heat capacity i.e. it doesn't really absorb any heat, it all goes to the water in the solution. for all sp.h.c. questions you should just take into account the mass of the solution. (so it was 50 not 55, plus the zinc is in excess too)

 

[kcapfootball]

hey guys, in question 3 about 'little or no iodine is visible' what would be an acceptable answer?

 

[ISTIAQUE]

hey guys, in question 3 about 'little or no iodine is visible' what would be an acceptable answer?

add starch solution turns blue-black if iodine present....

 

[alex]

hey guys, in question 3 about 'little or no iodine is visible' what would be an acceptable answer?

check if there were purple fumes/or dark grey solid is visible