Chemistry Predictions/Thoughts (10 Viewers)

[sakinluvo]

guys im stressed about polymers, the only thing i brushed over in my study.

 

[smiskis]

what's the best resource that helped you learn this mod?

this website has youtube tutorials explaining the entire syllabus, it's lowk saving me rn

Module 8: Applying Chemical Ideas – HSC Chemistry

Module 8: Applying Chemical Ideas is the fourth module of the new NSW HSC Chemistry curriculum. In this module, students will learn about both qualitative and quantitative analytical techniques for inorganic and organic substances. In the last section of the module, students will explore various...

scienceready.com.au

 

[coolcat6778]

this website has youtube tutorials explaining the entire syllabus, it's lowk saving me rn

Module 8: Applying Chemical Ideas – HSC Chemistry

Module 8: Applying Chemical Ideas is the fourth module of the new NSW HSC Chemistry curriculum. In this module, students will learn about both qualitative and quantitative analytical techniques for inorganic and organic substances. In the last section of the module, students will explore various...

scienceready.com.au

which do you think is easier to understand, the chemistry in focus textbook or his vids?

 

[smiskis]

guys im stressed about polymers, the only thing i brushed over in my study.

it shouldn't be too bad, this post summarises it really clearly

addition polymers -> double bond in a monomer breaks -> frees up an electron per atom -> bonds between the monomers
- polyethlyene
-polytetrafluoroethylene
- polyvinyl chloride
- poly styrene
- polypropylene

condensation -> condensation reactions between functional group -> loss of small molecule (usually water) -> bonds between the monomers
- polyesters
-polyamides -> nylons
- proteins \

that is as simply as it can be put. and learn some examples in detail if you get time.

 

[smiskis]

which do you think is easier to understand, the chemistry in focus textbook or his vids?

his vids for sure, since he actually explains and goes through the solutions, whereas the textbook just gives it to you
and it's useful for summarising each topic

 

[nowomansland]

it shouldn't be too bad, this post summarises it really clearly

im cooked if exam asks for properties

 

[eternallyboreduser]

im cooked if exam asks for properties

If they make this entire exam on js memorising shit then they are actuslly fucking retarded and should be fired cos that shit is genuinrly a waste of space

 

[eternallyboreduser]

Wait can smo wuickly explain cycads and cycadim shit to me again cos im confusrd some past papers say equilibriuk system and others say its not so im so confusrd

 

[nowomansland]

Wait can smo wuickly explain cycads and cycadim shit to me again cos im confusrd some past papers say equilibriuk system and others say its not so im so confusrd

ok so yes it is a dynamic equilibrium system but it never like reaches equilbrium bc its an open system
this is the eq system:
cycasin(s) ⇌ cycasin (aq)
this is bc when the cycads are cut open and placed in FLOWING water, the toxin dissolves in the water and turns from solid to liquid and is removed from the system. bc aqueous cycasin is removed, system shifts right to counteract that change which converts more solid cycasin into aqueous. this kinda keeps going until all of it is converted so that no more toxin is left in the cycad.
so the features of an eq apply but once converted it obv cant go back which is why it never reaches eq

 

[eternallyboreduser]

ok so yes it is a dynamic equilibrium system but it never like reaches equilbrium bc its an open system
this is the eq system:
cycasin(s) ⇌ cycasin (aq)
this is bc when the cycads are cut open and placed in FLOWING water, the toxin dissolves in the water and turns from solid to liquid and is removed from the system. bc aqueous cycasin is removed, system shifts right to counteract that change which converts more solid cycasin into aqueous. this kinda keeps going until all of it is converted so that no more toxin is left in the cycad.
so the features of an eq apply but once converted it obv cant go back which is why it never reaches eq

ahhh okok this makes sense ty

 

[eternallyboreduser]

ok so yes it is a dynamic equilibrium system but it never like reaches equilbrium bc its an open system
this is the eq system:
cycasin(s) ⇌ cycasin (aq)
this is bc when the cycads are cut open and placed in FLOWING water, the toxin dissolves in the water and turns from solid to liquid and is removed from the system. bc aqueous cycasin is removed, system shifts right to counteract that change which converts more solid cycasin into aqueous. this kinda keeps going until all of it is converted so that no more toxin is left in the cycad.
so the features of an eq apply but once converted it obv cant go back which is why it never reaches eq

damn bro u hella orepped

 

[nowomansland]

damn bro u hella orepped

hahah i made sure to prep that topic in the holidays

 

[yourlocaliga]

polymers saponification factory location planning and effects of aboriginal cycad equilibrium on the economy
anything sacky

THANK q

 

[99.95dreams]

ok so yes it is a dynamic equilibrium system but it never like reaches equilbrium bc its an open system
this is the eq system:
cycasin(s) ⇌ cycasin (aq)
this is bc when the cycads are cut open and placed in FLOWING water, the toxin dissolves in the water and turns from solid to liquid and is removed from the system. bc aqueous cycasin is removed, system shifts right to counteract that change which converts more solid cycasin into aqueous. this kinda keeps going until all of it is converted so that no more toxin is left in the cycad.
so the features of an eq apply but once converted it obv cant go back which is why it never reaches eq

u are completely right in ur explanation but actually this is not a dynamic equilibrium -> cause by nature it can only be achieved in a closed system where the rate of forward reaction equals to rate of reverse reaction, whereby both products and reactants stay in the system. if the products are continously being removed, then the reverse reaction cannot happen at all, hence dynamic eq. cannot be established.

 

[coolcat6778]

https://www.studocu.com/en-au/docum...ka-kb-buffer-questions-with-answers/126885769
look at how low the mean marks are for mod 6 calculation questions. how the fuck is alignment still so horrible?

 

[coolcat6778]

yup, I'm just gonna focus on rote learning and answering as many qualitative questions as I can. I wish I could do engineering studies, but the losers in my school didn't pick it. Everyone is failing, they had no reason to choose chemistry as well. I wouldn't be in this hell full situation if it weren't for them. There are legit no other physics/math favourable subjects in the HSC besides engineering studies. Look at the engineering studies exam papers, it literally looks identical to HSC physics. I would rather that over fucking boring ass HSC chemistry every single day even if the scaling is worse

I genuinely get so mad when people discuss "answer structures" for biology and chemistry. It's as if this subjects English or some shit. I never see these kinds of videos or tiktoks on answer structures for physics.

 

[99.95dreams]

https://www.studocu.com/en-au/docum...ka-kb-buffer-questions-with-answers/126885769
look at how low the mean marks are for mod 6 calculation questions. how the fuck is alignment still so horrible?
View attachment 50261

this q fr sent me to hell

 

[coolcat6778]

this q fr sent me to hell

what about the last half of the 2021 paper?

 

[99.95dreams]

yea it was tricky... honestly im just hoping for some generic titration, ice table q, solubility etc, but i feel like they are gonna throw random stuff in today. istg if they test like the titration analysis or application techniques im actually gonna crash out

 

[99.95dreams]

BUT IM DONEEEE AFTER THIS SO idgaf anymore