Question

What is the correct chemical equation for the dissociation of potassium carbonate in water?

1) K₂CO₃ (s) → K₂CO₃ (aq)
2) kCO₃ (s) → k (aq) CO₃²⁻ (aq)
3) kCO₃ (s) → k (aq) c (s) 3 O₂- (aq)
4) K₂CO₃ (s) → 2k (aq) CO₃²⁻ (aq)
5) K₂CO₃ (s) → 2k (aq) c4 (aq) 3 O₂- (aq)
6) K₂CO₃ (s) → k2 (aq) CO₃²⁻ (aq)

Answer 1

The dissociation of potassium carbonate in water is represented by the equation: K₂CO₃ (s) → 2K⁺ (aq) + CO₃²⁻ (aq), where the solid dissociates into potassium and carbonate ions in water.

Step-by-step explanation:

The correct chemical equation for the dissociation of potassium carbonate (K₂CO₃) in water is:

K₂CO₃ (s) → 2K⁺ (aq) + CO₃²⁻ (aq)

When potassium carbonate dissolves in water, it separates into potassium ions (K⁺) and carbonate ions (CO₃²⁻). Potassium carbonate is an ionic compound, and as such, when it dissolves in water, it dissociates into its constituent ions. Each formula unit of K₂CO₃ produces two potassium ions and one carbonate ion in solution.