iodide(in) + chloride(out) => iodide(out) + chloride(in)
iodide(in) + chloride(out) => iodide(out) + chloride(in)
iodide(in) + chloride(out) => iodide(out) + chloride(in)
iodide(in) + chloride(out) => iodide(out) + chloride(in)