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OFFICIAL: GCSE AQA Chemistry - C1- Higher- 19th May 2016 - AM

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HAHA, i wrote about protons and electrons for the 2nd first question so im more fed than u

I didn't really know what to put so I just wrote about emulsifiers and the hydrophobic... Hopefully I can get a few marks from writing what I did

Reply 181

Elliec4067

For the question about improving apparatus was it ok to say about using a lid for an insulator to prevent heat loss escaping?

Reply 182

Obnox

Original post by Elliec4067

For the question about improving apparatus was it ok to say about using a lid for an insulator to prevent heat loss escaping?

I put that as well ye :biggrin:

Reply 183

redsoules

Original post by Graciemac

I didn't really know what to put so I just wrote about emulsifiers and the hydrophobic... Hopefully I can get a few marks from writing what I did

Yep. Wrote basically the same stuff. Emulsifiers, hydrophillic and hydrophobic molecules attach to the water and oil moluecules to harden the substance. We NEEDED to put the catalyst of nickel and heat of 60oC.

I'd be very surprised if we get points for emulsifying and hydro's.

Reply 184

Graciemac

Original post by redsoules

Well it's over now so no point in worrying about it, nothing can change but good luck in your other exams :smile:

Reply 185

hello654321

Is it alright if I wrote that the neon atom was wrong because the first she'll should have 2 electrons, and that its group 0 so should not have one electron in the final she'll it's she'll should be full? I think i wrote somethings else but I can't remember
Also I wrote that insulating the cup would improve accuracy because there's less energy transfer so temp doesn't go down ? Is this right?

Reply 186

Adzkii786

Would i get a mark if I wrote: protons and neutrons, negative and positive charge, +1 charge and -1 charge for the sub=atmoic? not even 1 mark?

Reply 187

Obnox

Original post by Adzkii786

Would i get a mark if I wrote: protons and neutrons, negative and positive charge, +1 charge and -1 charge for the sub=atmoic? not even 1 mark?

1 mark for saying that it is protons and neutrons

Reply 188

redsoules

Genuinely think i've got about 30/60... what a shocking result. Might even have less than that! If I get a C i will literally cry.

Reply 189

loshaw20

Original post by JustasB

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I said that it did not reach a high enough temperature to thermally decompose therefore no carbon dioxide was being released which is why the limewater did not turn cloudy.

Exactly what I put 😂😂

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Reply 190

BoB1357246

I think i put:2Fe2O3 + 3C ---> 2Fe2 + 3CO2
Is this not right ??

Reply 191

whatjusthappend?

Really good exam had all the things I revised for

Reply 192

Obnox

Original post by BoB1357246

I think i put:2Fe2O3 + 3C ---> 2Fe2 + 3CO2
Is this not right ??

No it should be:
2Fe₂O₃+ 3C ----> 4Fe + 3CO₂

Reply 193

redsoules

Original post by BoB1357246

I think i put:2Fe2O3 + 3C ---> 2Fe2 + 3CO2
Is this not right ??

Unfortunately not.Well, I don't know 100% as this part "2Fe2" should just be 4Fe

Reply 194

username1888141

Original post by BoB1357246

I think i put:2Fe2O3 + 3C ---> 2Fe2 + 3CO2
Is this not right ??

iron is a metal so it won't be 2Fe2 (no covalent bond)it would be 4Fe

Reply 195

mayjunemayhem

What happened to chapter 7. I revised for that so much 😭😭

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Reply 196

mayjunemayhem

There was no polymerisation either

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Reply 197

Obnox

Original post by mayjunemayhem

What happened to chapter 7. I revised for that so much 😭😭

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Was that stuff about the atmosphere and the Earth, cos im glad that wasnt on it.

Reply 198

mayjunemayhem

Ah well. It's done now let's just hope the grade boundaries aren't sky high. It will probably be similar to last years

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Reply 199

redsoules

Original post by mayjunemayhem

Ah well. It's done now let's just hope the grade boundaries aren't sky high. It will probably be similar to last years

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Which I don't know whether people like that or not.

I certainly don't... I'd hope a* was more mid 40's... that gives me a shed of hope to get an A at the most...