This document discusses easy ways to teach difficult chemistry topics. It identifies common difficult topics like the periodic table, chemical bonds, and acids and bases. The root causes of students struggling with these topics could be weak basic skills, ineffective teaching, or poor textbook organization. The document recommends strengthening basic skills with revision exercises, improving teaching skills with analogies and visual aids, and reorganizing textbook content around core ideas and learning outcomes to create a better module. An example is given for effectively teaching the topic of salts.