The reaction between sulfuric acid (H2SO4) and iron (III) chloride (FeCl3) can be represented by the following chemical equation:
2 FeCl3 + 3 H2SO4 → Fe2(SO4)3 + 6 HCl
In this reaction, iron (III) chloride reacts with sulfuric acid to form iron (III) sulfate and hydrochloric acid. Iron (III) sulfate (Fe2(SO4)3) is a compound in which iron is in its +3 oxidation state, and sulfur is in its +6 oxidation state.
It's important to note that this reaction releases hydrochloric acid gas (HCl), which is highly corrosive and has a strong, pungent odor. Proper safety precautions should be taken when working with or observing this reaction.