Označeno: Ogljikovodiki in njihovi polimeri

Viri: https://commons.wikimedia.org/wiki/File:Heptane-3D-balls-B.png https://www.wikiwand.com/sl/Metilbutan https://free3d.com/3d-model/ethane-molecule-637.html https://sv.wikipedia.org/wiki/Oktan https://edutorij.e-skole.hr/share/proxy/alfresco-noauth/edutorij/api/proxy-guest/40356591-ffe5-43ee-9ed2-7bdd822a675e/kemija-8/m03/j03/index.html