Hi, I am a 11th grade student and I am interested in learning chemistry. Although I learn chemistry at school but my skills aren't very good, so I want to find some books for beginners which can help me improve my knowledge. If anyone know good chemistry books for beginners, can you suggest for me some? Thank you very much. I also confuse about the difference between chemistry and physics, what do we study in chemistry but don't study in physics? And what are the main topics or fields which appear in chemistry. My last question is that does chemistry require firm mathematical skills?