• 2022-07-25 问题

    在Fe3+溶液中加入NH3 ·H2O,生成的物质是 A: Fe(OH)3 B: [Fe(OH)6]3– C: [Fe(NH3)6]3+ D: [Fe(NH)3(H2O)3]3+

    在Fe3+溶液中加入NH3 ·H2O,生成的物质是 A: Fe(OH)3 B: [Fe(OH)6]3– C: [Fe(NH3)6]3+ D: [Fe(NH)3(H2O)3]3+

  • 2022-07-29 问题

    可溶性Fe(Ⅲ)盐溶液中加入氨水后主要生成的物质是( ) A: Fe(OH)3 B: [Fe(NH3)3(H2O)3]3+ C: [Fe(H2O)6]3+ D: [Fe(NH3)6]3+

    可溶性Fe(Ⅲ)盐溶液中加入氨水后主要生成的物质是( ) A: Fe(OH)3 B: [Fe(NH3)3(H2O)3]3+ C: [Fe(H2O)6]3+ D: [Fe(NH3)6]3+

  • 2022-07-24 问题

    在Fe3+溶液中,加入氨水生成的物质是 A: [Fe(NH3)6]3+ B: [Fe(NH3)3(H2O)3]3+ C: [Fe(OH)6]3- D: Fe(OH)3

    在Fe3+溶液中,加入氨水生成的物质是 A: [Fe(NH3)6]3+ B: [Fe(NH3)3(H2O)3]3+ C: [Fe(OH)6]3- D: Fe(OH)3

  • 2021-04-14 问题

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  • 2021-04-14 问题

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  • 2021-04-14 问题

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  • 2021-04-14 问题

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  • 2022-06-18 问题

    image组件不支持()图片格式。 A: JPG B: PNG C: SVG D: BMP

    image组件不支持()图片格式。 A: JPG B: PNG C: SVG D: BMP

  • 2021-04-14 问题

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  • 2022-07-25 问题

    下列同一浓度的溶液中,所含粒子数最多的是( )。 A: FeSO4 B: (NH4)2Fe(SO4)2 C: (NH4)3[Fe(CN)6] D: Fe2[Fe(CN)6] E: Fe[Fe(CN)6]

    下列同一浓度的溶液中,所含粒子数最多的是( )。 A: FeSO4 B: (NH4)2Fe(SO4)2 C: (NH4)3[Fe(CN)6] D: Fe2[Fe(CN)6] E: Fe[Fe(CN)6]

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