Answer:
2OH-(aq) + Fe3+(aq) → Fe(OH)3(s)
Step-by-step explanation:
The balanced molecular equation for the reaction between calcium hydroxide (Ca(OH)2) and iron(III) chloride (FeCl3) is:
Ca(OH)2(aq) + FeCl3(aq) → Fe(OH)3(s) + CaCl2(aq)
To write the net ionic equation, we first need to break down the soluble reactants and products into their respective ions:
Ca(OH)2(aq) → Ca2+(aq) + 2OH-(aq)
FeCl3(aq) → Fe3+(aq) + 3Cl-(aq)
Fe(OH)3(s) → Fe3+(aq) + 3OH-(aq)
CaCl2(aq) → Ca2+(aq) + 2Cl-(aq)
Next, we need to identify the spectator ions, which are ions that appear on both sides of the equation and do not participate in the reaction. In this case, the spectator ions are Ca2+ and 2Cl-.
Therefore, the net ionic equation is:
2OH-(aq) + Fe3+(aq) → Fe(OH)3(s)
This equation shows the actual chemical change that occurs during the reaction, with only the ions and molecules that participate in the reaction shown.