Question

Write the ions present in a solution of K₂CO₃.

A. K⁺, CO₃²⁻
B. K⁺, C⁺, O₃⁻
C. K₂⁺, CO₂⁻
D. K₂⁺, C⁺, O₃⁻

Answer 1

In a solution of K₂CO₃, the ions present are K⁺ (potassium ions) and CO₃²⁻ (carbonate ions). Answer A is correct.

Step-by-step explanation:

The ions present in a solution of K₂CO₃ are K⁺ and CO₃²⁻. Potassium carbonate dissociates in water to form two potassium ions and one carbonate ion. Here is the breakdown of the dissociation:

• Potassium carbonate: K₂CO₃
• Dissociates into: 2 K⁺ + CO₃²⁻

Thus the correct answer is A. K⁺, CO₃²⁻