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{“questions”:{“n8xn9”:{“id”:”n8xn9″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2008\r\n\r\n \r\nNelle reazioni di ossido-riduzione avviene sempre un passaggio di:\r\n“,”desc”:””,”hint”:””,”answers”:{“wvpos”:{“id”:”wvpos”,”image”:””,”imageId”:””,”title”:”A) elettroni tra un metallo e un non metallo”},”o9vh7″:{“id”:”o9vh7″,”image”:””,”imageId”:””,”title”:”B) ioni tra un metallo e un non metallo”},”u0g3f”:{“id”:”u0g3f”,”image”:””,”imageId”:””,”title”:”C) ioni tra …

{“questions”:{“9cj0b”:{“id”:”9cj0b”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2007\r\n\r\n \r\nIn una reazione una specie si ossida se:\r\n“,”desc”:””,”hint”:””,”answers”:{“xcc7a”:{“id”:”xcc7a”,”image”:””,”imageId”:””,”title”:”A) accetta elettroni da un riducente”},”fs93a”:{“id”:”fs93a”,”image”:””,”imageId”:””,”title”:”B) accetta elettroni da un ossidante”},”lnog6″:{“id”:”lnog6″,”image”:””,”imageId”:””,”title”:”C) cede elettroni a un ossidante”,”isCorrect”:”1″},”zs5cs”:{“id”:”zs5cs”,”image”:””,”imageId”:””,”title”:”D) cede elettroni a un …

{“questions”:{“d6nzs”:{“id”:”d6nzs”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2006\r\n\r\n \r\nCome varia il numero di ossidazione del cromo nella seguente ossidoriduzione:(NH4)2Cr2O7 \u2192 Cr2O3 + 4H2O + N2\r\n“,”desc”:””,”hint”:””,”answers”:{“gojcn”:{“id”:”gojcn”,”image”:””,”imageId”:””,”title”:”A) da +4 a +3″},”ifzrr”:{“id”:”ifzrr”,”image”:””,”imageId”:””,”title”:”B) da +5 a +2″},”8rqk4″:{“id”:”8rqk4″,”image”:””,”imageId”:””,”title”:”C) da +6 …

{“questions”:{“1yii4”:{“id”:”1yii4″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2006\r\n\r\n \r\nIn una reazione una specie si riduce se:\r\n“,”desc”:””,”hint”:””,”answers”:{“laqu7”:{“id”:”laqu7″,”image”:””,”imageId”:””,”title”:”A) cede elettroni a un ossidante”},”d0en3″:{“id”:”d0en3″,”image”:””,”imageId”:””,”title”:”B) accetta elettroni da un riducente”,”isCorrect”:”1″},”5y9dl”:{“id”:”5y9dl”,”image”:””,”imageId”:””,”title”:”C) accetta elettroni da un ossidante”},”zu4p9″:{“id”:”zu4p9″,”image”:””,”imageId”:””,”title”:”D) cede elettroni a un …

{“questions”:{“c5213”:{“id”:”c5213″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2005\r\n\r\n \r\nNella reazione: Fe + Cu2+ \u21c4 Fe2+ + Cu:\r\n“,”desc”:””,”hint”:””,”answers”:{“zfizt”:{“id”:”zfizt”,”image”:””,”imageId”:””,”title”:”A) lo ione Cu2+ \u00e8 l’agente riducente”},”xaphl”:{“id”:”xaphl”,”image”:””,”imageId”:””,”title”:”B) il Fe \u00e8 l’agente ossidante”},”biiod”:{“id”:”biiod”,”image”:””,”imageId”:””,”title”:”C) il Fe acquista elettroni”},”y528j”:{“id”:”y528j”,”image”:””,”imageId”:””,”title”:”D) lo ione Cu2+ …

{“questions”:{“a2x9v”:{“id”:”a2x9v”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2004 \r\n\r\n \r\nNella reazione:3 Cu + 8 HNO3 \u2192 3 Cu(NO3)2 + 2 NO + 4 H2O\r\n“,”desc”:””,”hint”:””,”answers”:{“fyrie”:{“id”:”fyrie”,”image”:””,”imageId”:””,”title”:”A) Il Cu si ossida”,”isCorrect”:”1″},”b8fzn”:{“id”:”b8fzn”,”image”:””,”imageId”:””,”title”:”B) Il Cu si riduce”},”pnzgx”:{“id”:”pnzgx”,”image”:””,”imageId”:””,”title”:”C) L\u2019N si ossida”},”u5wl0″:{“id”:”u5wl0″,”image”:””,”imageId”:””,”title”:”D) …

{“questions”:{“w3ly8”:{“id”:”w3ly8″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2004 \r\n\r\n \r\nIn una reazione di ossido-riduzione, l\u2019elemento che si riduce:\r\n“,”desc”:””,”hint”:””,”answers”:{“tf4ie”:{“id”:”tf4ie”,”image”:””,”imageId”:””,”title”:”A) aumenta il proprio numero di ossidazione “},”b10x7”:{“id”:”b10x7″,”image”:””,”imageId”:””,”title”:”B) perde elettroni”},”yukwh”:{“id”:”yukwh”,”image”:””,”imageId”:””,”title”:”C) acquista elettroni”,”isCorrect”:”1″},”j8hs7″:{“id”:”j8hs7″,”image”:””,”imageId”:””,”title”:”D) acquista sempre atomi di idrogeno”},”5ecbc”:{“id”:”5ecbc”,”image”:””,”imageId”:””,”title”:”E) perde …

{“questions”:{“l4ihy”:{“id”:”l4ihy”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2004 \r\n\r\n \r\nIn una reazione di ossido\u2013riduzione:\r\n“,”desc”:””,”hint”:””,”answers”:{“848k3”:{“id”:”848k3″,”image”:””,”imageId”:””,”title”:”A) l\u2019ossidante acquista protoni, il riducente perde elettroni”},”anxvk”:{“id”:”anxvk”,”image”:””,”imageId”:””,”title”:”B) l\u2019ossidante acquista elettroni, il riducente li perde”,”isCorrect”:”1″},”sz2q4″:{“id”:”sz2q4″,”image”:””,”imageId”:””,”title”:”C) l\u2019ossidante perde elettroni, il riducente li acquista”},”r8tf2″:{“id”:”r8tf2″,”image”:””,”imageId”:””,”title”:”D) …

{“questions”:{“i9hgv”:{“id”:”i9hgv”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2003 \r\n\r\n \r\nNella reazione Zn + FeCl2 \u2192 ZnCl2 + Fe la specie chimica che si riduce \u00e8 :\r\n“,”desc”:””,”hint”:””,”answers”:{“kz78i”:{“id”:”kz78i”,”image”:””,”imageId”:””,”title”:”A) Fe”,”isCorrect”:”1″},”d72jt”:{“id”:”d72jt”,”image”:””,”imageId”:””,”title”:”B) Zn”},”1t0j6″:{“id”:”1t0j6″,”image”:””,”imageId”:””,”title”:”C) Cl”},”euybn”:{“id”:”euybn”,”image”:””,”imageId”:””,”title”:”D) nessuna, si ha solo ossidazione”},”irlt5″:{“id”:”irlt5″,”image”:””,”imageId”:””,”title”:”E) non …

{“questions”:{“nylsu”:{“id”:”nylsu”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2002 \r\n\r\n \r\nNella reazione:2 Ca3(PO4)2 + 10 C + 6 SiO2 \u2192 P4 + 6 CaSiO3 + 10 CO : \r\n“,”desc”:””,”hint”:””,”answers”:{“xw1cm”:{“id”:”xw1cm”,”image”:””,”imageId”:””,”title”:”A) il fosforo si riduce e calcio e …