19th May 2016 - OCR 21st Century Science C1 C2 C3 Exam

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i put to fully combust the air contains other compounds and may result in incomplete combustion

I started to talk about that but crossed it out, because since it was powering a welding torch, heat is the main thing they would be looking for.

Reply 121

Usmaan345

Original post by Ella_08

hydrocarbon

Oh that's good

Posted from TSR Mobile

Reply 122

username1454260

Original post by Ryndvdmddn

I put that it burns in oxygen as it can burn more rapidly, and so reach higher temperatures.

Seems right to me even though i had no idea in the exam

Reply 123

username1454260

Original post by Usmaan345

Oh that's good

Posted from TSR Mobile

guessing you got that too :wink:

Reply 124

fowfows

Guys I hope everyone's exam went well! I didn't do that great lol, the only thing I'm confident I got was about the ruler and I rambled on for a whole page😂

Reply 125

reu_taylor

For the ruler question, did anybody else say that the girl who was breaking rulers method was not economically viable and was a waste of resources?

Reply 126

99Qwerty99

what did everyone get for the table on the last page?

Reply 127

hannahlilliexo

Original post by fowfows

Guys I hope everyone's exam went well! I didn't do that great lol, the only thing I'm confident I got was about the ruler and I rambled on for a whole page😂

Lol me too 😂 At least I know I got that one right

Reply 128

katxxxx

Original post by 99Qwerty99

what did everyone get for the table on the last page?

I got 0.16 x 10^7 and 10000

Reply 129

reu_taylor

Original post by katxxxx

I got 0.16 x 10^7 and 10000

I got 1.6 x 10 to the 6 - not sure which is right, both will probably be allowed

Reply 130

iow16

10 000 for the first box and 1.6X10^6 for the second I think.

Reply 131

iow16

Original post by Sarahhabibx

What did everyone do for the solution mining question?

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I was confused by that one, thought there wasn't enough boxes! I was sure that they had to distill it in order to purify it and that stuff like clay was absorbed too...

Reply 132

emmald583

Original post by iow16

I was confused by that one, thought there wasn't enough boxes! I was sure that they had to distill it in order to purify it and that stuff like clay was absorbed too...

There were enough boxes, some of the options were incorrect - clay is insoluble, for example.

Reply 133

lalafirmstone

Original post by emmald583

@lalafirmstone Liked the crude oil 4 mark and drawing the molecules!

Didn't like the invigilator so much...

haha that little one can be a bit of a b*tch

Reply 134

lalafirmstone

Original post by emmald583

I started to talk about that but crossed it out, because since it was powering a welding torch, heat is the main thing they would be looking for.

Well I put it burns quicker I think, so dropped a mark there :biggrin:

Reply 135

emmald583

Original post by lalafirmstone

haha that little one can be a bit of a b*tch

Felt like telling her that I can still hear what she says even if she puts her hand in front of her face :colondollar:

Reply 136

lalafirmstone

Original post by emmald583

Felt like telling her that I can still hear what she says even if she puts her hand in front of her face :colondollar:

and dismissing us one row at a time was only prolonging the distraction for the 6th formers, not making it any better... particularly when the floor makes a stupid noise anytime anyone so much as breathes

Reply 137

emmald583

Original post by lalafirmstone

You forgot copious amounts of eye rolling when someone pushed their chair in too loudly...

Reply 138

lalafirmstone

So happy I revised risks of plasticizers last min... that was something I had completely forgotten was in the spec! Anyone else face any questions they were not expecting??