集合每課重點KEYNOTES + 影片, 溫習方案, 精要指出每課最核心內容, 制定溫習重點! 歡迎各位下載. Topic 2 Metals 10. Occurrence and Extraction of Metals 11. Reactivity of Metals Coming Soon 12. Reacting Masses Cooming Soon Topic 5 Redox 20. Reduction and Oxidation 21. Electrochemical Cells Coming Soon 22. Electrolysis coming Soon