Question

Predict whether a reaction will occur when elemental chlorine and potassium iodide are mixed.

Answer 1

Yes, a reaction will occur when elemental chlorine and potassium iodide are mixed. chlorine is a halogen and potassium iodide is a halide, so they are likely to react in a redox reaction. The chlorine will oxidize the iodide ions, forming iodine and chloride ions. The reaction can be represented as:

Cl2 + 2KI → 2KCl + I2

Therefore, a reaction will occur when elemental chlorine and potassium iodide are mixed.