chloroethene + chloride + A + H(+) => (Z)-1,2-dichloroethene + AH2
chloroethene + chloride + a + h(+) => (z)-1,2-dichloroethene + ah2
chloroethene + chloride + A + H(+) => (Z)-1,2-dichloroethene + AH2
chloroethene + chloride + a + h(+) => (z)-1,2-dichloroethene + ah2