You will find that this activity book has a puzzle for every mood.
College Board Achievement Test in Chemistry – Lawrence Solomon (1985, PB)
You will find that the illustrated appendix adds extra depth.
Modern Chemistry, Teacher’s Edition, Castka, Joseph F.,Williams, John E.,Metcalf
You will find that this novel changes slightly each time you read it.
Chemistry: A Molecular Approach [RENTAL EDITION] – Paperback, by Tro – Good
This activity book includes spot-the-difference games that sharpen your focus.