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Watch Later 2:37

S5_CHEM_CH49_C1_ Variable oxidation states of transition metals

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S5_CHEM_CH49_B_ Coloured ions of transition metals

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S5_CHEM_CH49_A_ Positions and characteristic properties of transition metals in the Periodic Table

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S5_化學_CH49_E_過渡性金屬及它們的化合物的日常用途及對健康的重要性

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S5_化學_CH49_D2_多相催化劑

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S5_化學_CH49_D1_均相催化劑

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S5_化學_CH49_C2_鐵在化合物中常見的氧化態

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S5_化學_CH49_C1_過渡性金屬的可變氧化態

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S5_化學_CH49_B_過渡性金屬的有色離子

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