Where is the IB Chemistry HL Paper 1 May 2015 mark scheme?

It is on this page, next to the question paper. Choose Mark scheme, or Both, then mark your own answers against it.

Which timezone is the May 2015 Chemistry Paper 1?

Timezone 1. IB sets more than one paper in a session so candidates in different parts of the world do not sit the same questions.

Sit Paper 1 under timed conditions before you open the mark scheme. Record every mark you dropped, then take the next sitting of the same paper.

IB · Sciences · HL

Sit the question paper first, then open the mark scheme.

Opening the paper

Clear a timed slot and sit Paper 1 without the mark scheme.
Open the mark scheme only after you have finished, and mark exactly what you wrote.
List the marks you dropped, then take another Chemistry Paper 1 from the sessions below.
Get a response marked against the IB criteria when you want a second reading.

Where is the IB Chemistry HL Paper 1 May 2015 mark scheme?: It is on this page, next to the question paper. Choose Mark scheme, or Both, then mark your own answers against it.
Which timezone is the May 2015 Chemistry Paper 1?: Timezone 1. IB sets more than one paper in a session so candidates in different parts of the world do not sit the same questions.
How should I revise with this Chemistry paper?: Sit Paper 1 under timed conditions before you open the mark scheme. Record every mark you dropped, then take the next sitting of the same paper.