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