{"id":421,"date":"2019-06-11T18:48:40","date_gmt":"2019-06-11T18:48:40","guid":{"rendered":"http:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/?p=421"},"modified":"2019-06-11T20:58:15","modified_gmt":"2019-06-11T20:58:15","slug":"practiques-de-reaccions-quimiques","status":"publish","type":"post","link":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/2019\/06\/11\/practiques-de-reaccions-quimiques\/","title":{"rendered":"Pr\u00e0ctiques de reaccions qu\u00edmiques"},"content":{"rendered":"\n<p>En tecnologia aquest trimestre hem fet dos experiments dels quals explicar\u00e9 els passos i els resultats a continuaci\u00f3:<\/p>\n\n\n\n<p><strong>1a practica<\/strong>: <\/p>\n\n\n\n<p>Aquesta pr\u00e0ctica consisteix en veure com reacciona si barregem&nbsp;\u00e0cid ac\u00e8tic,&nbsp;que en aquest cas es vinagre, amb&nbsp;per\u00f2xid d\u2019Hidrogen, que en aquest cas era aigua oxigenada, i fiquem una moneda de 2 c\u00e8ntims. <\/p>\n\n\n\n<p><strong>Materials que necessitarem:<\/strong><\/p>\n\n\n\n<ul><li>\u00c0cid ac\u00e8tic<\/li><li>Per\u00f2xid d\u2019Hidrogen<\/li><li>Un vas de precipitat<\/li><li>Una moneda de 2 c\u00e8ntims<\/li><\/ul>\n\n\n\n<p><strong>Pasos a seguir:<\/strong><\/p>\n\n\n\n<ol><li>Posem 2 dits d\u2019\u00e0cid ac\u00e8tic i de per\u00f2xid de d\u2019Hidrogen en el vas de precipitat.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/wrDdryuCyKSpYWz5MzGLYn1uqHal7m_Af80s-Gkp4XJUhSfplncQ8BgD0Drm6osjXPXcqxBWUkR1mulxtwLoxqxdYmFj81yisdqMNmNsu46s1nbHxL7nm1YHMqJUMH3IHxX52nzF\" alt=\"\" \/><\/figure>\n\n\n\n<p>2. Fiquem la moneda de 2 c\u00e8ntims.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/AngFljMn9YlygkvYxBwkQBNFg2-MR3PYRyjQzPe-u6ZRZKbTmXjm7H1qI_R-DJnT2TMhfDFTqXqfbPnUDyg5Is-VeIvgrIwdM2Kazta2tpCvD2iLHxMPOioZs8Vs2_ZeHkHJH4M_\" alt=\"\" \/><\/figure>\n\n\n\n<p>3. I finalment deixem uns dies de rep\u00f2s.<\/p>\n\n\n\n<p>I aquest \u00e9s<strong> el resultat:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/kTkNYKgo5LTm1BX-0ifSZbPkMtQ7gkH96MyNYYOrOspT002mME1LyHNA0SjCw2ze7S6HKMT58kpZ7mBCo3xvZi1yUUMh9HmRLMAvjLDLQVWF4FbYH1Ps4sPYq_oecUB0_NQxegAw\" alt=\"\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/lxYBUBKdXBTipGC6Fl4YwFYnjbdpFaoHlbuYmYwovm9MxbWkoBmH-15MS2Ss8Sg5DzAXzY4WF_oEXujYR1Q-5cyddHD3f7h4leoPpxUlMTeoPJ0yaB0Q4BYEDWC1-sdLsYCarU4X\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>2\u00aa pr\u00e0ctica:<\/strong> <\/p>\n\n\n\n<p>En la seg\u00fcent practica observarem com reacciona barrejar&nbsp;<strong>bicarbonat de sodi<\/strong>&nbsp;amb&nbsp;<strong>\u00e0cid ac\u00e8tic<\/strong>.<\/p>\n\n\n\n<p><strong>Materials que necessitarem:<\/strong><\/p>\n\n\n\n<ul><li>Balan\u00e7a<\/li><li>Un guant de l\u00e0tex<\/li><li>Un vas de precipitat<\/li><li>Bicarbonat de sodi<\/li><li>\u00c0cid ac\u00e8tic<\/li><\/ul>\n\n\n\n<p><strong>Un pas important \u00e9s sempre apuntar tot el que pesen.<\/strong><br><strong>Passos a seguir:<\/strong><\/p>\n\n\n\n<ol><li>Pesar el vas de precipitats.<\/li><li>Afegim al voltant de 50-100 ml d\u2019\u00e0cid ac\u00e8tic.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/sLvr3-kWnKcjW3M9bgs5V1gi6JY8zL8yLgrEbQivssU7gwf1J3yD5QixYoiYiyqqSsiW9xODDxZc30ItUMeSYXS9x4wNX-FfSxnyXgYDOtfZK_-quyR3V9YG1JjjJXQ9N68B-OBl\" alt=\"\" \/><\/figure>\n\n\n\n<ol><li>Pesem el guant de l\u00e0tex.<\/li><li>Pesem 5 g de bicarbonat de sodi i ho posem al recipient.<\/li><li>Tapar tot el recipient amb el guant de l\u00e0tex de manera que no surti&nbsp;<strong>el gas<\/strong>.<\/li><li>Calculem totes les dades que hem apuntat i les sumem.<\/li><li>Comparem quant pesa despr\u00e9s de que el gas s\u2019hagi anat per complet.<\/li><\/ol>\n\n\n\n<p><strong>Resultats:<\/strong><br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/YKShs35Yu4pEwPIeMzPYhKJtgbE2346uf2qUDTfmB4kj7DujbYEM59alDbAaRA5GI2heW38yVdQlap_M-B_6CUtYCH7rqFfqPyFADtxPSIrOq8gqE3TunLYcX-Gsj36_FuB1H_yJ\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>3\u00aa pr\u00e0ctica:<\/strong><\/p>\n\n\n\n<p>En aquesta pr\u00e0ctica observarem com s&#8217;oxida els materials. <\/p>\n\n\n\n<p><strong>Materials o productes:<\/strong><\/p>\n\n\n\n<ul><li>Monedes de c\u00e8ntim<\/li><li>Forquilla o cullereta i paper de cuina<\/li><li>Clau de ferro<\/li><li>Env\u00e0s de vidre petit<\/li><li>\u00c0cid ac\u00e8tic<\/li><\/ul>\n\n\n\n<p><strong>Procediment:<\/strong><\/p>\n\n\n\n<p>1.Preparar el vas amb tres dits d\u2019\u00e0cid ac\u00e8tic.<\/p>\n\n\n\n<p>2.Ficar la moneda i deixar reposar uns dies.<\/p>\n\n\n\n<p>3.Treure la moneda amb la forquilla.<\/p>\n\n\n\n<p>4.Rentar b\u00e9 la moneda amb aigua i passar-li el paper de cuina.<\/p>\n\n\n\n<p>5.Posar la clau de ferro dintre del vas i esperar 30 min.<\/p>\n\n\n\n<p><strong>Resultats:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/b328kj58fu2Dh5zLU86uUaoZVPEXGJtd2x1tLMeaVgrww9MRLNm2yGrLmX0QVFT2XA8spXvmyYH4XwZtRApB-1OWGGwdBIBXKKXoJeeZE5SQ9ADP2sqftLYi7HdewPVmB-1z3Tfw\" alt=\"\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/ZoC0uIV6x86J5puNLh4UZg13DgMJ30_szDW5DB7d6l4TBvATO6hFqRJ-CsGDv2a6gRYxeyL3HtAhXF-x_incs1h-naPT51CRM4ha9-xmyBS6E5vwTQUp12gfAmYI-QSiatly_wBe\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>4\u00aa pr\u00e0ctica:<\/strong><\/p>\n\n\n\n<p>La quarta i \u00faltima practica tracta de barrejar diversos productes de neteja amb un l\u00edquid que haurem fet de col vermella.<\/p>\n\n\n\n<p><strong>Materials que necesitarem:<\/strong><\/p>\n\n\n\n<ul><li>Productes de neteja<\/li><li>Una gradeta<\/li><li>Una pipeta<\/li><li>Un vas de precipitat<\/li><li>Tants tubs d\u2019assaig com productes de neteja hagis escollit<\/li><li>Col vermella<\/li><li>Tetera<\/li><li>Indicador de pH:<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/8yFwUZy1lvXnWu1H_983cG7nQU4mX_CDmxGM_7Icz6k_6IA_o5_EshSfIr6BT5R4BSg854Xqy6eZ99ffkkvP4TTylqztB9lHTBhNNZt1nCRH3tkIu6755uEaXDlaPbteaOZa-wjo\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>Procediment:<\/strong><\/p>\n\n\n\n<ol><li>Tallem a trossos petits la col vermella i ho deixem en vas de precipitat ple d&#8217;aigua bullent.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/YlW6Y5GaLJvuVkC0UIZgbv_ai8ftDi57CwIpsvs_4FImWBKTZlh1QRAc1MB0wiSopEgVfF4dUnW_niMSrIaHAQdsly4dHhkbqxGcNsvYMsht78Qg1qJTU0hg3mUS7e2RHuaa2WZO\" alt=\"\" \/><\/figure>\n\n\n\n<p>2. D&#8217;altre banda posem una poca quantitat de cada producte de neteja als tubs d\u2019assaig.<\/p>\n\n\n\n<p>3. Quan ja han passat 15 mins posem 3 de l&#8217;aigua amb col vermella amb la pipeta.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/o8MZKdjoZFsTA2Yo-oUo22E-hIC4GuWuJVTPqp69yC273YCCdGqZrobvDIc6kRlcbq61r4lS82ewEdqThozVrDBTLaKdW2FTvUYTRB70i0d-zSFDe_sBW2PSvlCbefKiBpEc6jla\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>Resultats:<\/strong><br><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/ZCKIN6cAsHU4n1kRG-UoCdlFdm1TYAu943DQaB-eKSXhSom3EJZHyNYKm87R2AQwRn5CAShYfM4MHrhA7tLGKK6JBBAHTRsCl4M_W3d98jYA506hdCSN_EPKMsVIvtHCFknhbBEb\" alt=\"\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>En tecnologia aquest trimestre hem fet dos experiments dels quals explicar\u00e9 els passos i els resultats a continuaci\u00f3: 1a practica: Aquesta pr\u00e0ctica consisteix en veure com reacciona si&#8230;<\/p>\n","protected":false},"author":106,"featured_media":422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,1],"tags":[],"_links":{"self":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/posts\/421"}],"collection":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/users\/106"}],"replies":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/comments?post=421"}],"version-history":[{"count":2,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/posts\/421\/revisions"}],"predecessor-version":[{"id":431,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/posts\/421\/revisions\/431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/media\/422"}],"wp:attachment":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/media?parent=421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/categories?post=421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16erikamanchado\/wp-json\/wp\/v2\/tags?post=421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}