Balancing moleculor equations

Question

How do you write the balanced molecular chemical equation for the reaction in aqeous solution for iron(III) chloride and sodium sulfide? If no reaction were to occur, we'd write NR.

Answer 1

Iron(III) chloride = Fe(Cl)₃

Sodium sulfate = Na₂SO₄

NR would be the answer. Here's why....

2FeCl₃(aq) + 3Na₂SO₄(aq) ==> Fe₂(SO₄)₃(aq) + 6NaCl(aq) BUT all species are aqueous (soluble) and are all strong electrolytes. This assumes you accept the fact that Fe₂(SO₄)₃ is soluble. This being the case, there is no reaction.