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离子共存

> 下列各组离子或分子一定能在溶液中常量共存的是 [ ] A．K +、NH 4 +、SO 3 2-、HClO B．Na +、CO 3 2-、SO 4 2-、AlO 2 - C．Al 3+、Ba 2+、NH 3·H 2O、Cl - D．Fe 3+、Fe 2+、SCN -、Cl -

问题：

发布时间：2024-09-10

下列各组离子或分子一定能在溶液中常量共存的是
[ ]
A．K ⁺、NH ₄ ⁺、SO ₃ ^2-、HClO
B．Na ⁺、CO ₃ ^2-、SO ₄ ^2-、AlO ₂ ^- C．Al ³⁺、Ba ²⁺、NH ₃·H ₂O、Cl ^-D．Fe ³⁺、Fe ²⁺、SCN ^-、Cl ^-

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