N15 4 chemi hp2 eng tz0 xx m 16 pages markscheme november 2015 chemistry higher level paper 2. 12ofhrk point anthen through adding ecf acnotes 13 do not in unless 14 correctotherw mn h 15 expe a an ot 16y directedh n. Iv 137 80 57 which corresponds to c4h9 hence molecular formula c4h9br 1 do not accept ecf from 7aiii for an impossible molecular formula such as c 4 h 10 br. Ib questionbanks past papers mark schemes and grade boundaries watch m06 chemi sl tz0 m06 econo sl tz0 m06 busmt sl tz0 m06 physi hl tz1 m06 biolo sl m06 mathl tz0 we have a brilliant team of more than 60 support team members looking after discussions on the student room helping to make it a fun safe and useful place to hang out. O do not automatically award full marks for a correct answer all working must be checked and marks awarded according to the markscheme o it is generally not possible to award m0 followed by a1 as a marks depend on the preceding m marks if anyan exception to this rule is when work for m1 is missing as opposed to incorrect see point 4
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