K(+)(in) + chloride(in) => K(+)(out) + chloride(out)
k(+)(in) + chloride(in) => k(+)(out) + chloride(out)
K(+)(in) + chloride(in) => K(+)(out) + chloride(out)
k(+)(in) + chloride(in) => k(+)(out) + chloride(out)