Complete the balanced overall ionic equation for sodium iodide dissolving in water.

NaI (aq) → Na⁺ (aq) + I⁻(aq)

Explanation:

1) The formula of sodium iodide is NaI

2) Due to the great electronegativities of sodium (Na) and iodine (I), sodium iodide is a ionic compound.

3) Ionic compounds dissociate in water to produce the corresponding ions. In this case, since I has the greatest electronegativity, the ions are Na⁺ and I⁻ .

4) When you write the ionic equation, you have to take into account, the number of ions per unit formula and the phases.

So, in this case, the species are in water solutions, this is aqueous solutions. Then you use the symbol aq to indicate the aqueous phase.

The result is the ionic equation: NaI (aq) → Na⁺ (aq) + I⁻(aq)

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