Answer:
The correct answer is E. Na⁺, CO₃²⁻
Explanation:
Na₂CO₃ (sodium carbonate) is a salt. When it is dissolved in water, it dissociates into ions as follows:
Na₂CO₃ → 2 Na⁺ + CO₃²⁻
Thus, 1 mol of Na₂CO₃ produces 2 moles of sodium ion (Na⁺) and 1 mol of carbonate ion (CO₃²⁻). According to this, the correct option is E. Na⁺, CO₃²⁻
Note that option A (Na²⁺, CO₃²⁻) is not correct because sodium ion has 1 positive charge, not 2.
