Final answer:
The net ionic equation for chromium(III) chloride and sodium hydroxide is Cr(Aq) + 3OH-(Aq) → Cr(OH)3(S).
Step-by-step explanation:
The net ionic equation for the reaction between chromium(III) chloride and sodium hydroxide is:
Cr(Aq) + 3OH-(Aq) → Cr(OH)3(S)
This equation shows only the species that are involved in the chemical reaction and excludes the spectator ions. The chromium ions react with the hydroxide ions to form chromium(III) hydroxide, which is insoluble and precipitates out of the solution. The net ionic equation represents the essential chemical change occurring during the reaction, allowing us to focus on the core reaction between the reactants.