Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It deserves 0 - if not negative stars

Note: I'm 18. I am using this book for my Chemistry class at Berkeley and I must say that this is a terrible book. It makes no sense and the problems in the back are very difficult because reading the book will not help you answer them. The book does cover a lot, however, because I cannot find a reference book to help me understand this book that covers the same material.