The reaction between iron(II) sulfate (FeSO₄) and sodium hydroxide (NaOH) produces iron(II) hydroxide (Fe(OH)₂) and sodium sulfate (Na₂SO₄).

Here's the balanced chemical equation:

FeSO₄ (aq) + 2NaOH (aq) → Fe(OH)₂ (s) + Na₂SO₄ (aq)

Explanation:

* Iron(II) sulfate (FeSO₄) is a soluble ionic compound.

* Sodium hydroxide (NaOH) is also a soluble ionic compound.

* Iron(II) hydroxide (Fe(OH)₂) is an insoluble solid that precipitates out of solution as a green solid.

* Sodium sulfate (Na₂SO₄) remains dissolved in the solution.

This reaction is a classic example of a double displacement or metathesis reaction. The positive and negative ions of the reactants switch partners to form new products.