2023 HSC chat (10 Viewers)

[Masaken]

i think it's correct
for the flame test between ba and ca don't you need to boil it or something because u can't do a flame test with them in ppt forms

they're all solutions though (specifies it's 0.1 mol/L at the start) so there's no ppt involved between ba2+ and ca2+

 

[SadCeliac]

i think it's correct
for the flame test between ba and ca don't you need to boil it or something because u can't do a flame test with them in ppt forms

Ok I'll keep that in mind - flame test the ions - got it

cation looks correct but tbh you could've just said flame test without having the na2so4 bit since the three cations produce three distinct results (the colours of ba2+ and ca2+ and then you just say magnesium doesn't form a distinct colour). for anion, it's not AgOH that forms the precipitate - AgOH is formed but it's not stable so it decomposes into silver oxide (silver oxide is the brown precipitate you see) so you'd need to acknowledge that. Ag+ also forms a (white) precipitate with Cl- so you'd have to acknowledge that too but apart from that everything else looks fine

Okay yeah I didn't know that, and I kinda ignored the AgCl ppt because it was the final thing anyways... Also I forgot the colour lol (white yeah?)

THANKS GUYS <3
Good to know I've memorised the colours of ppts basically fully correctly

 

[user18181818]

they're all solutions though (specifies it's 0.1 mol/L at the start) so there's no ppt involved between ba2+ and ca2+

yeah but then he's adding sulfate to it to make a ppt right? or you could take a new solution and do the flame test

 

[its_ace21]

Shocker why does everyone think I'm gay
Self explanatory question but I'm still asking

View attachment 41115
Can anyone confirm if this elimination sequence is correct - HSC 2020 Chem paper

send ur chem stuff to the chem thread not here

 

[SadCeliac]

send ur chem stuff to the chem thread not here

I did but people look here too <3

 

[Sam14113]

idk my english teacher seems like extremely confident ill b6 - she reckons im gonna get the second highest hsc mark in my yeargroup (we usually get 4-6 b6 for context) which is nice but idk if it’s like a false confidence

How are you like almost SR in like every STEM subject there is and then are suddenly crazy at English as well?

 

[SadCeliac]

How are you like almost SR in like every STEM subject there is and then are suddenly crazy at English as well?

He's just @carrotsss - simple really

 

[scaryshark09]

How are you like almost SR in like every STEM subject there is and then are suddenly crazy at English as well?

he started past papers in January

 

[SadCeliac]

he started past papers in January

And not out of the womb? Disappointed @carrotsss

 

[its_ace21]

@scaryshark09 u lied about being offline, clearly u have separation anxiety and u love us too much

 

[SadCeliac]

@scaryshark09 u lied about being offline, clearly u have separation anxiety and u love us too much

Ace and why are you still here you're done here

I'm saying this knowing full well I'll come back to visit bos despite being done hsc tomorrow

 

[scaryshark09]

Ace and why are you still here you're done here

I'm saying this knowing full well I'll come back to visit bos despite being done hsc tomorrow

I would like to see if you leave after chem...

 

[its_ace21]

Ace and why are you still here you're done here

I'm saying this knowing full well I'll come back to visit bos despite being done hsc tomorrow

i love bos too much if i leave ill become depressed

 

[SadCeliac]

i love bos too much if i leave ill become depressed

No same it's an outlet for procrastination and oh boy am I gonna be procrastinating on life after hsc

 

[its_ace21]

No same it's an outlet for procrastination and oh boy am I gonna be procrastinating on life after hsc

fr i dont even know what im gonna do now but the weather is so niceeeee like idk might just stare outside for a few hours and think about all my life choices until its night

 

[scaryshark09]

the weather is so niceeeee like idk might just stare outside for a few hours and think about all my life choices until its night

the weather most certainly is not nice today!

 

[its_ace21]

the weather most certainly is not nice today!

YES IT IS WHAT ARE YOU ON ABOUT

 

[scaryshark09]

it will be nice on monday tho

 

[its_ace21]

it will be nice on monday tho

are u fr its gonna be 35 and im gonna evaporate

 

[its_ace21]

i want to go to the beachhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh bro home is so boring