Putanga 1: Ka āhei te Ethenone ki te polymerize āta, te whakapā ki te hauwai peroxide e arahi ana ki te tauhohenga pupuhi ka taea te hanga ki te hau he ranunga pupuhi. Putanga 2: E ahu mai ana te Ethenone ki te hanga i a ia ano. Ko te whakapā ki te waikura hauwai ka arahi ki te tauhohenga pupuhi. Ka taea e ia te whakakotahi i tētahi ranunga pupuhi ki te hau. Pātai: He ōrite te tikanga o te rerenga 1 me te rerenga 2? He Ae, he Kore rānei?
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