trichloroethene + chloride + A + H(+) => tetrachloroethene + AH2
trichloroethene + chloride + a + h(+) => tetrachloroethene + ah2
trichloroethene + chloride + A + H(+) => tetrachloroethene + AH2
trichloroethene + chloride + a + h(+) => tetrachloroethene + ah2