The essential study and revision guide for AS Chemistry, revised for the 2015 AQA specification. Focusing on AS Paper 2 Organic Chemistry.Checked by AQA examiners, this is a revised and updated edition of Collins Student Support Materials for AQA. It fully supports the 2015 AQA AS and A-level Year 1 Chemistry specification concentrating on organic chemistry and related physical chemistry topics.Use as a study guide or revision guide to ensure success in your exam.• Tackle new-style written exam questions with guidance on practical and mathematical skills• Avoid common mistakes and get advice on exams with Exam Notes• Focus on just the content you need with Essential Notes• Memorise terminology for required practicals and mathematical and Working Scientifically aspects• Practise exam-style questions