{"id":11222,"date":"2023-09-25T13:51:11","date_gmt":"2023-09-25T11:51:11","guid":{"rendered":"https:\/\/agora.xtec.cat\/ceiplapau\/?p=11222"},"modified":"2023-11-03T10:47:10","modified_gmt":"2023-11-03T09:47:10","slug":"neteja-magica","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ceiplapau\/grans\/neteja-magica\/","title":{"rendered":"Neteja m\u00e0gica?"},"content":{"rendered":"

Quina \u00e9s la barreja m\u00e9s efectiva per netejar les monedes? Per qu\u00e8?<\/p>\n

La barreja de vinagre amb sal \u00e9s la m\u00e9s efectiva. El vinagre \u00e9s el que neteja la moneda i el clorur de sal actua accelerant i millorant el proc\u00e9s, com a catalitzador.<\/p>\n

Les monedes de coure, com les de 1, 2 o 5 c\u00e8ntims d’\u20acuro, s’oxiden per l’acci\u00f3 d’oxigen atmosf\u00e8ric, formant-se sobre elles una capa de dos \u00f2xids de coure. El vinagre, que \u00e9s una dissoluci\u00f3 \u00e0cida, dissol aquesta capa d’\u00f2xid fent que la moneda recuperi la brillantor. A l’afegir la sal, aquesta actua com a catalitzadora i afavoreix accelerant i millorant el proc\u00e9s.<\/p>\n

Podr\u00edem netejar qualsevol altre objecte?<\/p>\n

Qualsevol objecte de coure es podria netejar amb aquest proc\u00e9s.<\/p>\n

Per \u00faltim, posem el clau de ferro a la dissoluci\u00f3 i observem qu\u00e8 passa: una reacci\u00f3 d’oxidaci\u00f3 accelerada.<\/p>\n

Un espectacle cient\u00edfic que ens ha agradat molt a totes els i les alumnes de 6\u00e8! Teniu les fotos a la promoci\u00f3 del grup!<\/div>\n","protected":false},"excerpt":{"rendered":"

Quina \u00e9s la barreja m\u00e9s efectiva per netejar les monedes? Per qu\u00e8?
\nLa barreja de vinagre amb sal \u00e9s la m\u00e9s efectiva. El vinagre \u00e9s el que neteja la moneda i el clorur de sal actua accelerant i millorant el proc\u00e9s, com a catalitzador.
\nLes monedes de… Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":11223,"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":[497,519],"tags":[507,502],"class_list":["post-11222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grans","category-ens-fem-bones-preguntes","tag-ens-fem-bones-preguntes","tag-grans"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/posts\/11222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/comments?post=11222"}],"version-history":[{"count":2,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/posts\/11222\/revisions"}],"predecessor-version":[{"id":11225,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/posts\/11222\/revisions\/11225"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/media\/11223"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/media?parent=11222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/categories?post=11222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceiplapau\/wp-json\/wp\/v2\/tags?post=11222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}