I am also studying A2 chemistry. I didnt do very good but I think we should focus more of our attention on getting A"s and retake any of f321 or 2. A friend sugested using past paper cos examiners mark based on it. for example, there are millions of ways writing an answer but following how the mark scheme works would increase our chances of full marks hope to get in touch with u concerning yr next move and next of yr psa taking place, see ya.