any body doing OCR biology and chemistry?

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#1
Report 16 years ago
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how did you feel about the unifying concepts of both of these subjects?
did any body remeber the genotype of the plant leaves questions?
were them AAaa,BBbb,ABab,and the new phenotype is aabb.

and the last question of that question, i write reduce cost.

CHEMISTRY
the PH for the 0.02 moldm3 HCL is 1.7
and the PH for the buffer solution was 4.19 or something......

and the last question is CaC2O4 for compound Y.
and for compound X is COOH
COOH
Is that right???

were them hard?
what do think??????
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Yes I think your chemistry answers are right - thats what i got anyway. I didn't find it too bad - I've seen worse!!! And I don't know about Biology cos I don't do it, but aparently central Concepts was a nightmare.
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i got the same chemistry answers as that as well, i thought the paper was alright with a few harder bits thrown in. really wish i had done some more revision for chains rings and spec retake thou, i could answer the theory questions but none of the method ones.
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and the dilute question.
was it to add in 400 water molecule???
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I dunno I left that one cos I was running out of time and it wasn't many marks so I tried to get all the ones with lots of marks done. Still didn't finish though.
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