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离子共存

> 在溶液中加入足量Na 2O 2后仍能大量共存的离子组是 [ ] A．NH 4 +、Ba 2+、Cl -、NO 3 - B．K +、[Al(OH) 4] -、Cl -、SO 4 2- C．Ca 2+、Mg 2+、NO 3 -、HCO 3 - D．Na +、Cl -、CO 3 2-、SO 4 2-

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发布时间：2024-09-09

在溶液中加入足量Na ₂O ₂后仍能大量共存的离子组是
[ ]
A．NH ₄ ⁺、Ba ²⁺、Cl ^-、NO ₃ ^-B．K ⁺、[Al(OH) ₄] ^-、Cl ^-、SO ₄ ^2-C．Ca ²⁺、Mg ²⁺、NO ₃ ^-、HCO ₃ ^-D．Na ⁺、Cl ^-、CO ₃ ^2-、SO ₄ ^2-

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