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Revision for as-level chemistry 9701

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Hey does anyone know the substance for 9701 - 31 for tomorrow 😭😭😭 im panicking because I was never in the lab for the last 2 years
Ask Hammad Dogar, he's a life saviour!
Original post by Nevine Ali
Hey does anyone know the substance for 9701 - 31 for tomorrow 😭😭😭 im panicking because I was never in the lab for the last 2 years
Omgg guys Instead of effervscence gas turns limewater milky I wrote effervscence turns limewater milky will I not be marked for it!??!
I don't think you will... You have to write effervescence and gas evolved turns limewater milky
Original post by curious_12
Omgg guys Instead of effervscence gas turns limewater milky I wrote effervscence turns limewater milky will I not be marked for it!??!
Reply 64
Avatar for haxzan_
haxzan_
6
guys anyone have the feb march stats paper (s1)??
Original post by haxzan_
guys anyone have the feb march stats paper (s1)??


yes i do the links of its worked solution and paper are below:
qp : https://www.file4.net/f-TA1
worked solution: https://www.file4.net/f-TKr
Reply 66
Avatar for Al8y
Al8y
7
In rate questions did ur graph pass through the origin ?
It doesn't need to pass through the origin. It needs to be longer than the points , that's it.
Reply 68
Avatar for haxzan_
haxzan_
6
thank you
Original post by Dhvani29
yes i do the links of its worked solution and paper are below:
qp : https://www.file4.net/f-TA1
worked solution: https://www.file4.net/f-TKr
Original post by haxzan_
thank you


welcome
Reply 70
Avatar for Al8y
Al8y
7
Thnx 👍
Original post by TheTenthBox
It doesn't need to pass through the origin. It needs to be longer than the points , that's it.
Reply 71
Avatar for Al8y
Al8y
7
Did anyone of you get Ammonium Sulphate as the first compound.. It's the first part of salt analysis.
It's sulphuric acid
Original post by Al8y
Did anyone of you get Ammonium Sulphate as the first compound.. It's the first part of salt analysis.
Reply 73
Avatar for Al8y
Al8y
7
Oh.. I got that wrong.. the second page of salt analysis where you had to find 2 anion.. one was carbonate and the other was OH- ?
No, they asked to find one anion ( Cu2+) and 1 cation ( CO3 2-)
Original post by Al8y
Oh.. I got that wrong.. the second page of salt analysis where you had to find 2 anion.. one was carbonate and the other was OH- ?

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