What is the compound formula for k1 plus co32?

The compound formula for the combination of potassium ions (K⁺) and carbonate ions (CO₃²⁻) is K₂CO₃. This is because two potassium ions are needed to balance the negative charge of one carbonate ion, resulting in a neutral compound. Therefore, the final formula is K₂CO₃, commonly known as potassium carbonate.