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离子共存

> 在水溶液中能大量共存的一组离子是（　　） A．NH+4、Na+、Br-、SO2-4 B．Fe2+、H+、ClO-、Cl- C．K+、Ca2+、OH-、NO-3 D．Mg2+、H+、SiO32-、SO2-4

问题：

发布时间：2024-09-13

在水溶液中能大量共存的一组离子是（　　）

A．NH⁺₄、Na⁺、Br^-、SO^2-₄ B．Fe²⁺、H⁺、ClO^-、Cl^-

C．K⁺、Ca²⁺、OH^-、NO^-₃ D．Mg²⁺、H⁺、SiO₃^2-、SO^2-₄

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在水溶液中能大量共存的一组离子是（ ） A．NH+4、Na+、Br-、SO2-4 B．Fe2+、H+、ClO-、Cl- C．K+、Ca2+、OH-、NO-3 D．Mg2+、H+、SiO32-、SO2-4

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在水溶液中能大量共存的一组离子是（　　）

A．NH⁺₄、Na⁺、Br^-、SO^2-₄ B．Fe²⁺、H⁺、ClO^-、Cl^-

C．K⁺、Ca²⁺、OH^-、NO^-₃ D．Mg²⁺、H⁺、SiO₃^2-、SO^2-₄