{"id":589,"date":"2018-05-19T22:01:03","date_gmt":"2018-05-19T22:01:03","guid":{"rendered":"http:\/\/institutviladomat.cat\/portfoli\/15marbernet\/?p=589"},"modified":"2018-06-11T06:45:28","modified_gmt":"2018-06-11T06:45:28","slug":"reaccions-quimiques","status":"publish","type":"post","link":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/2018\/05\/19\/reaccions-quimiques\/","title":{"rendered":"Reaccions qu\u00edmiques"},"content":{"rendered":"<p>A f\u00edsica i qu\u00edmica hem estat fent varies pr\u00e0ctiques per poder comprendre com s\u00f3n i que es fa a les reccions qu\u00edmiques. Vam fer 5 pr\u00e0ctiques i vam haver de fer un informe recollint totes les dades, incluint els materials, el procediment i els c\u00e0lculs. Aquest \u00e9s l&#8217;informe de la primera pr\u00e0ctica i a baix, el document complert.<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Pr\u00e0ctica 1 Monedes:<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Les monedes de 0,02 \u20ac tenen un nucli de ferro i una capa de coure. Al cap d&#8217;unes hores d&#8217;estar en contacte amb la mescla d&#8217;\u00e0cid ac\u00e8tic i per\u00f2xid d\u2019Hidrogen, les monedes perden el coure i el l\u00edquid canvia de color.<\/b><\/p>\n<ul>\n<li><b>Com s&#8217;explica la p\u00e8rdua de coure que ha experimenta la moneda?<\/b><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Perqu\u00e8 l\u2019acid ac\u00e8tic dissol el coure. <\/span><\/li>\n<li style=\"font-weight: 400\"><b>Per quina causa el l\u00edquid ha canviat de color<\/b><span style=\"font-weight: 400\">?<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Perqu\u00e8 el coure s\u2019ha dissolt. <\/span><\/li>\n<\/ul>\n<p><b>Materials per la pr\u00e0ctica:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">\u00c0cid ac\u00e8tic<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Per\u00f2xid d\u2019Hidrogen<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Un vas de precipitats<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Una moneda de 0,02 \u20ac ben nova i ben neta<\/span><\/li>\n<\/ul>\n<p><b>Procediment:<\/b><\/p>\n<ol>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">S\u2019ha de netejar la moneda de 2 c\u00e8ntims i posar-la al fons del vas. <\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Afegim dos dits de per\u00f2xid d\u2019Hidrogen i dos dits de \u00e0cid ac\u00e8tic o vinagre.<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Deixa reposar el vas amb la moneda i el l\u00edquid unes hores i despr\u00e9s observa que ha passat, <\/span><\/li>\n<\/ol>\n<p><b>Conclusions:<\/b><\/p>\n<p><span style=\"font-weight: 400\">La moneda ha perdut el coure al estar en contacte amb l\u2019\u00e0cid ac\u00e8tic i amb el per\u00f2xid d\u2019Hidrogen. El coure s\u2019ha anat separant de la moneda i ha quedat la moneda sense coure.\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Document complert amb els informes:<\/p>\n<iframe width=\"100%\" height=\"400\" frameborder=\"0\" scrolling=\"https:\/\/docs.google.com\/document\/d\/1Sy03N1oxECLGsMzqhaT_TvSquLskNbxAvRezGSrU3Hc\/preview?usp=drivesdk\" src=\"https:\/\/docs.google.com\/document\/d\/1Sy03N1oxECLGsMzqhaT_TvSquLskNbxAvRezGSrU3Hc\/preview?usp=drivesdk\"><\/iframe>\n","protected":false},"excerpt":{"rendered":"<p>A f\u00edsica i qu\u00edmica hem estat fent varies pr\u00e0ctiques per poder comprendre com s\u00f3n i que es fa a les reccions qu\u00edmiques. Vam fer 5 pr\u00e0ctiques i vam&#8230;<\/p>\n","protected":false},"author":19,"featured_media":591,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36,1],"tags":[],"_links":{"self":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/posts\/589"}],"collection":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/comments?post=589"}],"version-history":[{"count":1,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/posts\/589\/revisions"}],"predecessor-version":[{"id":590,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/posts\/589\/revisions\/590"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/media\/591"}],"wp:attachment":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/media?parent=589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/categories?post=589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/15marbernet\/wp-json\/wp\/v2\/tags?post=589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}