{"id":2106,"date":"2017-11-03T16:51:02","date_gmt":"2017-11-03T15:51:02","guid":{"rendered":"http:\/\/agora.xtec.cat\/esc-elfar\/?p=2106"},"modified":"2017-11-03T16:57:24","modified_gmt":"2017-11-03T15:57:24","slug":"globus-gasos","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/esc-elfar\/nivells\/globus-gasos\/","title":{"rendered":"Globus gas\u00f3s"},"content":{"rendered":"

L’alumnat de cicle mitj\u00e0 ens hem tornat a trobar per fer una sessi\u00f3 conjunta d’experimentaci\u00f3. Abans de comen\u00e7ar les tutores ens han fet mem\u00f2ria de la reacci\u00f3 entre \u00e0cids i bases. No era un concepte nou per nosaltres, ja\u00a0el\u00a0vam treballar a la sessi\u00f3 anterior quan vam provocar una explosi\u00f3 de soda.<\/p>\n

Per\u00f2 en aquesta ocasi\u00f3 ens han explicat molt m\u00e9s sobre la reacci\u00f3. El proc\u00e9s que es forma s’anomena efervesc\u00e8ncia i \u00e9s la que podem recon\u00e8ixer en productes medicinals com l’aspirina. Es tracta d’una resposta inmediata a la uni\u00f3 dels elements \u00e0cids i bases, que deriva amb la formaci\u00f3 de bombolles de di\u00f2xid de carboni.<\/p>\n

Un cop donada l’explicaci\u00f3, hem iniciat l’experiment en qu\u00e8 hem utilitzat: vinagre com a \u00e0cid, bicarbonat com a base, una ampolla petita de pl\u00e0stic i un globus.<\/p>\n

Hem omplert l’ampolla amb vinagre i el globus de bicarbonat. Llavors hem encaixat, en el coll de l’ampolla, el globus. Finalment, hem abocat el bicarbonat del globus dins el recipient i… Uuaauu! L’efervesc\u00e8ncia de la reacci\u00f3 ha inflat el globus!<\/p>\n

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 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

L’alumnat de cicle mitj\u00e0 ens hem tornat a trobar per fer una sessi\u00f3 conjunta d’experimentaci\u00f3. Abans de comen\u00e7ar les tutores ens han fet mem\u00f2ria de la reacci\u00f3 entre \u00e0cids i bases. No era un concepte nou per nosaltres, ja\u00a0el\u00a0vam treballar a la sessi\u00f3 anterior quan… Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":7,"featured_media":2111,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[109,1],"tags":[74,75,71,61,55],"class_list":["post-2106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-nivells","tag-3r","tag-4t","tag-cm","tag-primaria","tag-experimentacio"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/comments?post=2106"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2106\/revisions"}],"predecessor-version":[{"id":2116,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2106\/revisions\/2116"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media\/2111"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media?parent=2106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/categories?post=2106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/tags?post=2106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}