Revised and updated, this 2nd Edition Student Book provides straightforward and concise coverage of the WJEC AS Level Chemistry specification and is endorsed by WJEC, offering high quality support you can trust.┒ Test Yourself section at the end of each chapter to reinforce knowledge with answers provided in the book. ┒ Section on Answering exam questions at the end of each unit gives guidance on command words and how to approach each question.┒ Exam Practice questions at the end of each unit are taken from actual WJEC past papers with answers provided in the book. ┒ Enhanced support for practical skills help embed understanding of practical work. ┒ Increased maths support throughout with maths skills and techniques regularly tested throughout. ┒ Clear explanations and diagrams throughout. ┒ Includes the Periodic Table.