2. The ions in an ionic compound separate from each other when A. dissolved in water
B. when melted
C. when conducting electricity
D. never

A. when dissolved in water

Explanation:

Water is an extremely polar molecule, meaning it has a positive end a negative end. When an ionic compound is dissolved, the positive pole of water will be attracted to the negative ion and attach itself to it. The same goes for the positive ions. That's how water breaks down ionic compounds

ions do separate in an ionic compound because there is the free flow of electrons in the oppositely charged ions and conducts electricity in an aqueous form

your answer would be “dry”