Download or read book Ocr Gateway Gcse Chemistry Essentials written by Steve Langfield and published by Lonsdale Revision Guides. This book was released on 2008-04-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A student-friendly approach to revision. This revision guide provides concise coverage of the GCSE OCR Gateway Chemistry specification. The guide offers a student-friendly approach to the core content with succinct notes and practice questions that focus on the essential content needed for the exams.