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(学习化学所需要的基本资料)
Essential Materials in Studying Chemistry(學習化學所需要的基本資料) Materials to be remembered需要記得的質料 Names and Symbols of 36 common elements Classification of elements into metal and non-metal (and semi-metal) Colour of ions Formula of Common ions Order of reactivity of metals Common Oxidizing and Reducing agents Colour of insoluble metal hydroxides Solubility of ionic compounds Names (名稱) and symbols (符號) of 36 common elements Names (名稱) and symbols (符號) of 36 common elements Names (名稱) and symbols (符號) of 36 common elements Classification of elements into metal and non-metal (and semi-metal) Metal and non-metal elements form IONIC COMPOUNDS Non-metal and non-metal elements form COVALENT COMPOUNDS Metal and Metal elements form a mixture called alloy (合金). Names (名稱) and symbols (符號) of 36 common elements Positions of the first 20 Elements Positions of the first 20 Elements Mnemonic He Lies Because Boron CanNot Oxidize Fluorine. New Nations Might Also Sign Peace and Security Clauses. Colour of Aqueous Ions Colour of Aqueous Ions Colour of Aqueous Ions Colour of Aqueous Ions Colour of insoluble metal hydroxides Formula of Common ions Formulae of 10 Basic Polyatomic Ions Polyatomic cations Polyatomic anions ? ammonium ion OH? hydroxide ion CN? cyanide ion nitrate ion permanganate ion ClO3? chlorate ion SO42? sulphate ion CO32? carbonate ion Cr2O72?dichromate ion phosphate ion Formulae of 10 Basic Polyatomic Ions Polyatomic cations Polyatomic anions ? NH4+ ammonium ion OH? hydroxide ion CN? cyanide ion NO3? nitrate ion MnO4- permanganate ion ClO3? chlorate ion SO42? sulphate ion CO32? carbonate ion Cr2O72?dichromate ion PO43? phosphate ion Naming of ions Meaning of some prefixes and suffixes Example di- two dichromate ion, Cr2O72- thio - replace O atom by S atom thiosulphate ion, S2O32- hydrogen- H+ ion hydrogencarbonate io
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