The balanced chemical equation for the decomposition of ferrous carbonate (FeCO₃) is:

FeCO₃(s) → FeO(s) + CO₂(g)

Here's a breakdown:

* FeCO₃(s) represents solid ferrous carbonate.

* FeO(s) represents solid iron(II) oxide (also known as ferrous oxide).

* CO₂(g) represents gaseous carbon dioxide.

This equation shows that when ferrous carbonate is heated, it decomposes into iron(II) oxide and carbon dioxide.