(WCH13) IAL Chemistry Unit 3- 14 October 2020 (Exam Discussion)

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20016

sadly high. question one screwed me over i wrote barium bromide as the solid which i now think is wrong. how many marks was that question???

Reply 101

20016

Original post by 3956

B silver nitrate
C hydrochloric acid
D potassiun carbonate
E sodium chloride
I think these are the ans i got. I don't remember exactly

same but C and E were switched for me...i wrote Hcl as E

Reply 102

farwa420

Original post by 8013

a: 38
b: 34
c: 30
d: 26
e: 22
Given that there is no paper with an A boundary at 40, I assume the easiest papers have an A boundary at 38.

oh wow okay thanks

Reply 103

vghkk

Original post by farwa420

same for me but B and E r switched

same here

Reply 104

3956

Original post by 20016

same but C and E were switched for me...i wrote Hcl as E

it said that E and D gave no reaction. so E must be nacl. if E was hcl it would react with the carbonate to give co2

Reply 105

farwa420

Original post by 20016

sadly high. question one screwed me over i wrote barium bromide as the solid which i now think is wrong. how many marks was that question???

i think ab 7 or 8 i dont remember. but truee omg it was so hard figuring out the formula

Reply 106

farwa420

In Q1 what was the answer for the formula of that compound, and what was the anion and cation? i chose Cu3 for anion since they said it was green and not PALE green which is for barium

Reply 107

vghkk

Original post by farwa420

In Q1 what was the answer for the formula of that compound, and what was the anion and cation? i chose Cu3 for anion since they said it was green and not PALE green which is for barium

ba... cause cu is blue.. right?

Reply 108

3956

Original post by farwa420

In Q1 what was the answer for the formula of that compound, and what was the anion and cation? i chose Cu3 for anion since they said it was green and not PALE green which is for barium