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AS Chemistry- helping each other out!

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Original post by samb1234
Just saying he got 99% and I got 98% so its not like he did massively better but that doesn't stop him

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Hahahahahaha that's like not even one mark lol

In last physics unit 1 mock a guy got better mark than me and he smiled at corner of his mouth
In lunch time I went to get my mock and it turned out they added my marks wrong , and in fact I got 100% UMS so higher than the guy
Told the guy, and it was hilarious how he said "oh of course" with a face as though his dream of becoming a footballer or something was crushed

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Original post by C0balt
The point of doing notes IMO is actually making the notes so people who get someone else's notes are missing out in their revision tbh. (Well better than nothing obviously)


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Not true. I hardly ever make my own notes, and I often get higher marks than the person who's made them :biggrin:

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Original post by HAnwar
Not true. I hardly ever make my own notes, and I often get higher marks than the person who's made them :biggrin:

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Maybe if you made your own notes you'd get higher marks

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Original post by HAnwar
Not true. I hardly ever make my own notes, and I often get higher marks than the person who's made them :biggrin:

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There are other factors affecting it obviously
What I'm saying is when it's to do with notes the process of making notes is the biggest learning process rather than reading it; I'm not saying making note is the only way. You getting better grade have so many factors; your intelligence compared to others for instance, or how much you pay attention in class

In fact I don't make notes at all and I get better mark than anyone else in class so it's like saying my point is wrong lol which isn't the case

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Original post by samb1234
Maybe if you made your own notes you'd get higher marks

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Nah I doubt it. I can't even read my own writing.

Original post by C0balt
There are other factors affecting it obviously
What I'm saying is when it's to do with notes the process of making notes is the biggest learning process rather than reading it; I'm not saying making note is the only way. You getting better grade have so many factors; your intelligence compared to others for instance, or how much you pay attention in class

In fact I don't make notes at all and I get better mark than anyone else in class so it's like saying my point is wrong lol which isn't the case

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Yeah I see what you're saying.
I've never found note making that useful tbh.


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Original post by HAnwar
Nah I doubt it. I can't even read my own writing.
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RIP the examiners marking HAnwar's paper.



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Original post by C0balt
RIP the examiners marking HAnwar's paper.



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LOL that's what my teacher says!
She always tells me she feels sorry for the person who's got to mark it.

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Original post by HAnwar
LOL that's what my teacher says!
She always tells me she feels sorry for the person who's got to mark it.

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I feel even more sorry for the people who have to mark mine. .my handwriting is pretty bad when I write fast and I write so much that I write 2 lines per line they give me.

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Reply 1828
Does anyone have the June 2014 aqa unit 1 paper? :smile:


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Original post by C0balt
Erm you can ask me about physics AQA but don't ask me for what came up in the ISA


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i wasn't asking about the ISA, i think you misunderstood what i was asking but its fine
Really stuck on balancing equations with the H+ and H2O .. if anyone can explain I'd be soooo grateful
Original post by VetVikki
Really stuck on balancing equations with the H+ and H2O .. if anyone can explain I'd be soooo grateful


Redox?

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Yeah however everywhere I've looked just does the half equations like 2Br- --> Br2 + 2e-
I don't understand how to form equations such as H2SO4 + 6H+ + 6e- --> S + 4H2O
Original post by VetVikki
Really stuck on balancing equations with the H+ and H2O .. if anyone can explain I'd be soooo grateful

There are many equation with H+ and H2O
Post the question
Nvm

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(edited 8 years ago)
Original post by chemphys
i wasn't asking about the ISA, i think you misunderstood what i was asking but its fine


Because I offered some help with physics AQA, so many people literally bombard my inbox asking what came up in ISA. It wasn't only intended for you. I am happy to help with any AS physics or chemistry questions. It's just that if you or anyone else ask me what came up in ISA, I report them because it's against regulation of exams as well as TSR.

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It's more of a general thing that I don't understand when to add H+ and H2O and is there an OH- too!?
However for example:
Write the full redox equation for the reaction between sulphuric acid and sodium iodide?
What are the steps?
Original post by VetVikki
It's more of a general thing that I don't understand when to add H+ and H2O and is there an OH- too!?
However for example:
Write the full redox equation for the reaction between sulphuric acid and sodium iodide?
What are the steps?


It's ionic equation for acid alkali reaction if H+ +OH- ----> H2O.

You will omit any spectator ion in redox equation
Sodium ion is a spectator ion because it is unchanged in the reaction.
Check this link: http://www.chemguide.co.uk/inorganic/redox/equations.html#top
It explains better than typing all here
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Original post by C0balt
It's ionic equation for acid alkali reaction if H+ +OH- ----> H2O.

You will omit any spectator ion in redox equation
Sodium ion is a spectator ion because it is unchanged in the reaction.
Check this link: http://www.chemguide.co.uk/inorganic/redox/equations.html#top
It explains better than typing all here
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Yep chemguide is always a good source. Just remember the 'whe' rules (water hydrogen electrons) and you'll be fine. Balance anything that isn't hydrogen or water first, then balance oxygen by adding water, then hydrogen to balance hydrogen and electrons to balance charge

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This is my first time on this site. Can anyone help me with any revision? I have my ISA tomorrow. Im not asking for answers of course, just some equations that I should learn and any other things that will benefit me.
Original post by samb1234
Yep chemguide is always a good source. Just remember the 'whe' rules (water hydrogen electrons) and you'll be fine. Balance anything that isn't hydrogen or water first, then balance oxygen by adding water, then hydrogen to balance hydrogen and electrons to balance charge

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Original post by C0balt
It's ionic equation for acid alkali reaction if H+ +OH- ----> H2O.

You will omit any spectator ion in redox equation
Sodium ion is a spectator ion because it is unchanged in the reaction.
Check this link: http://www.chemguide.co.uk/inorganic/redox/equations.html#top
It explains better than typing all here
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Thankyou :tongue:

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