Write the net ionic equation for the precipitation of zinc carbonate from aqueous solution:
Zn^2+(aq) + CO3^2-(aq) ==> ZnCO3(s)
To write the net ionic equation for the precipitation of zinc carbonate from aqueous solution, we first need to know the balanced chemical equation for this reaction.
The formula for zinc carbonate is ZnCO3, which can be further broken down into the ions Zn2+ and CO3^2-. In aqueous solution, zinc carbonate dissociates into its respective ions.
The balanced chemical equation for the precipitation reaction can be as follows:
Zn2+(aq) + CO3^2-(aq) → ZnCO3(s)
In this equation, Zn2+ from the zinc ion combines with CO3^2- from the carbonate ion to form solid zinc carbonate.
Now, to obtain the net ionic equation, we exclude the spectator ions. Spectator ions are the ions that remain unchanged and do not participate in the formation of the precipitate.
In this case, the spectator ion is Zn2+, as it does not change during the reaction. Therefore, the net ionic equation for the precipitation of zinc carbonate is:
CO3^2-(aq) → ZnCO3(s)
This equation shows the essential ions involved in the reaction, highlighting only the carbonate ion that forms the precipitate, which is zinc carbonate in this case.
To write the net ionic equation for the precipitation of zinc carbonate, we need to first write the balanced chemical equation for the reaction.
The reaction between aqueous solutions of zinc chloride (ZnCl2) and sodium carbonate (Na2CO3) results in the precipitation of zinc carbonate (ZnCO3) along with the formation of sodium chloride (NaCl) as a soluble byproduct. The balanced chemical equation for this reaction is as follows:
ZnCl2(aq) + Na2CO3(aq) → ZnCO3(s) + 2NaCl(aq)
Now, to write the net ionic equation, we need to remove the spectator ions (ions that are present on both sides of the equation and do not participate in the reaction). In this case, the sodium ions (Na+) and chloride ions (Cl-) are spectator ions because they are present on both sides of the equation.
The net ionic equation for the precipitation of zinc carbonate is:
Zn2+(aq) + CO3^2-(aq) → ZnCO3(s)
In this net ionic equation, only the ions that participate in the actual reaction are shown.