Answer :

Final answer:

Ba(NO3)2, NaCl, and Mg(NO3)2 are soluble in water due to their ion-dissociating properties.


Explanation:

Soluble in water:

  1. Ba(NO3)2
  2. NaCl
  3. Mg(NO3)2

These compounds form aqueous solutions when dissolved in water due to their ability to dissociate into ions.


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