http___livro-ensino-medio.f1cf.com.br_quimica_hr_chemistry-96.html_1.xml
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ACTIVITY Wash the bark of a sausage (dried beef tripe) of 13 cm in length, with water and detergent. Cut a plastic soda bottle (2L) at a height of 15 cm from the base (forming a container) and cutting nozzle, fitting one end of the casing steer the nozzle. Make a stand with a piece of wood or styrofoam, with two holes (3.5 cm diameter) separated by 1.5 cm (this piece only serves to support). In support of wood or styrofoam supports the nozzle of the bottle now with ox tripe prey. Tie with a rubber band to tie money, the other end of ox tripe. Put by the nozzle, aqueous copper sulphate (CuSO ) and set aside. In another part of the plastic bottle-shaped container add a saturated aqueous salt (NaCl). Dip the system that you built with ox tripe in plastic container, then dip a copper plate (copper wire) in the aqueous solution of copper sulfate (CuSO ), contained in the gut of cattle, and zinc plate ( nail or trough) using the other hole of the support, the aqueous solution of salt, contained in a plastic container. Connect the wires of the lamp 1,5 V (little flashlight) to metals, zinc and copper adhesive tape. After a while, observe, note the changes in both systems and compare with the observations of the first experiment:
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AKTIVNOST Operite koru kobasice (sušena govedina tripice) od 13 cm u dužinu, vodom i deterdžentom. Izrežite plastičnu bocu soda (2L) na visini od 15 cm od baze (formiranje kontejner) i sapnice za rezanje, montažu jedan kraj kućišta kormilariti mlaznica. Napravite stalak s komadom drveta ili stiropora, sa dvije rupe (3,5 cm promjera) odvojenih 1,5 cm (ovaj dio služi samo za podršku). U prilog drvo ili stiropor podržava mlaznice boce sada s vola tripice plijena. Kravata s gumicom vezati novac, drugi kraj vola tripice. Put do mlaznica, vodena bakreni sulfat (CuSO ) i staviti na stranu. U drugom dijelu plastične boce u obliku spremnika dodati zasićenu vodenu soli (NaCl). Umočite sustav koji ste izgradili s vola tripice u plastičnoj posudi, a zatim umočiti bakrenu ploču (bakreni kabel) u vodenoj otopini bakar sulfat (CuSO ), sadržanih u crijevima goveda, i cinka ploče ( noktiju ili kroz) koristeći drugu rupu za potporu, vodena otopina soli, koji se nalazi u plastičnu posudu. Spojite žice od žarulje 1,5 V (mala bljeskalicu) na metale, cink i bakar ljepljivom trakom. Nakon nekog vremena, promatrati, uočiti promjene u oba sustava i usporedite s promatranjima prvom pokusu: materije i njezine prirode