Based on the solubility rules, which one of the following compounds should be insoluble in water? A)CaCO₃ B)(NH₄)₂CO₃ C)Na₂CO₃ D)K₂CO₃ E)KNO₃

Question

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According to the solubility rules, carbonates (such as CaCO3) are generally insoluble in water except for those of Group 1 and ammonium (NH4+) ions. Therefore, CaCO3 (choice A) should be insoluble in water. The other options contain soluble salts based on the solubility rules.

Based on the Solubility Rules, Which One of the Following