Balanced Equation:

Na₂O(s) + CO₂(g) → Na₂CO₃(s)

Type of Reaction:

This is a combination reaction, also known as a synthesis reaction. In this type of reaction, two or more reactants combine to form a single product.

Explanation:

* Sodium oxide (Na₂O), a solid, reacts with carbon dioxide (CO₂) , a gas.

* They combine to form sodium carbonate (Na₂CO₃), another solid.