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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 +、AlO 2 －、Cl －、SO 4 2－ C．Ca 2+、Mg 2+、NO 3 －、HCO 3 － D．Na +、Cl －、CO 3 2－、SO 3 2－

问题：

发布时间：2024-09-08

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 ⁺、AlO ₂ ^－、Cl ^－、SO ₄ ^2－
C．Ca ²⁺、Mg ²⁺、NO ₃ ^－、HCO ₃ ^－
D．Na ⁺、Cl ^－、CO ₃ ^2－、SO ₃ ^2－

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