Final answer:
No reaction occurs between potassium carbonate (K₂CO₃) and sodium (Na) because alkali metals and their compounds typically do not react with each other in a displacement reaction.
Step-by-step explanation:
The question asks what products are expected from the reaction between potassium carbonate (K₂CO₃) and sodium (Na).
It is expected that no reaction will occur because both potassium carbonate and sodium are alkali metal compounds, and such a direct displacement reaction does not typically occur between alkali metal compounds or between an alkali metal compound and an alkali metal. Therefore, the correct answer is D) No reaction occurs between K₂CO₃ and Na.