Question

Solve the following redox reactions.

Provide a balanced molecular equation, ionic equation, and net ionic equation if necessary.

1) 0.1 M FeCl3 + 0.2 M NH4I

2) 0.2 M NH4I + 0.2 M CuSO4

Answer 1

1. The balanced molecular equation is

FeCl₃ + 3NH₄I $\rightarrow$ FeI₃ + 3NH₄Cl

The ionic equation is

Fe⁺³ + Cl^- + NH₄⁺ + I^-$\rightarrow$ Fe⁺³ + I^- + NH₄⁺ + Cl^-

2. The balanced molecular equation is

CuSO₄ + 2NH₄I $\rightarrow$ CuI₂ + (NH₄)₂SO₄

The ionic equation is

Cu⁺² + SO₄^-2 + NH₄⁺ + I^-$\rightarrow$ Cu⁺² + I^- + NH₄⁺ + SO₄^-2