Question

when sodium carbonate, na₂co₃, dissolves in water, what ions are produced?
2na⁺ + co₃²⁻
2na⁺ + c²⁻ + 3/2o₂
no ions are formed
na₂²⁺ + co₃²⁻
2na⁺ + c⁴⁺ + 3o²⁻

Explanation:

Step1: Analyze sodium carbonate dissociation

Sodium carbonate ($Na_2CO_3$) is an ionic compound. When it dissolves in water, it dissociates into its constituent ions. Sodium ($Na$) has a +1 charge and there are 2 sodium atoms in $Na_2CO_3$, and the carbonate ion ($CO_3^{2 -}$) has a - 2 charge.
The dissociation equation is $Na_2CO_3
ightarrow2Na^{+}+CO_3^{2 -}$.

Answer:

$2Na^{+}+CO_3^{2 -}$