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{“questions”:{“b6y89”:{“id”:”b6y89″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2004\r\n\r\n \r\nSecondo Bronsted e Lowry, l\u2019acido coniugato della base HPO42- \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“xf61g”:{“id”:”xf61g”,”image”:””,”imageId”:””,”title”:”A) H2PO4–“,”isCorrect”:”1″},”z1rm1″:{“id”:”z1rm1″,”image”:””,”imageId”:””,”title”:”B) H2PO4“},”pexn0”:{“id”:”pexn0″,”image”:””,”imageId”:””,”title”:”C) HPO4-“},”35ecv”:{“id”:”35ecv”,”image”:””,”imageId”:””,”title”:”D) HPO42+“},”aci0a”:{“id”:”aci0a”,”image”:””,”imageId”:””,”title”:”E) H3PO4“}}}},”results”:{“i2sd8”:{“id”:”i2sd8″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” L’acido fosforico (ortofosforico) H3PO4 \u00e8 un acido triprotico e nelle tre deprotonazioni …

{“questions”:{“n2rdt”:{“id”:”n2rdt”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2000\r\n\r\n \r\nSolo una delle seguenti affermazioni \u00e8 ERRATA. Quale?\r\n“,”desc”:””,”hint”:””,”answers”:{“o5h70”:{“id”:”o5h70″,”image”:””,”imageId”:””,”title”:”A) Lo ione fluoruro \u00e8 la base coniugata di HF”},”ntkm1″:{“id”:”ntkm1″,”image”:””,”imageId”:””,”title”:”B) HCOOH \u00e8 l’acido coniugato della base formiato”},”3nk9h”:{“id”:”3nk9h”,”image”:””,”imageId”:””,”title”:”C) Lo ione solfato …

{“questions”:{“bs1o9”:{“id”:”bs1o9″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2001\r\n\r\n \r\n\u201cGli idrossidi sono composti ionici, che contengono OH\u2013 non solo in soluzione ma gi\u00e0 allo stato cristallino; la dissoluzione determina il distacco del catione dallo ione OH\u2013; …

{“questions”:{“8tgin”:{“id”:”8tgin”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1997\r\n\r\n \r\nQuando si scioglie in acqua il composto NaOH, il pH della soluzione ottenuta \u00e8 sempre:\r\n“,”desc”:””,”hint”:””,”answers”:{“zp6vs”:{“id”:”zp6vs”,”image”:””,”imageId”:””,”title”:”A) < 7"},"c19f5":{"id":"c19f5","image":"","imageId":"","title":"B) > 7″,”isCorrect”:”1″},”22np3″:{“id”:”22np3″,”image”:””,”imageId”:””,”title”:”C) > 6 e < 8"},"1m2bs":{"id":"1m2bs","image":"","imageId":"","title":"D) = 7"},"jypu3":{"id":"jypu3","image":"","imageId":"","title":"E) > …

{“questions”:{“f89oy”:{“id”:”f89oy”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2004\r\n\r\n \r\nQuando l\u2019acqua si trasforma in ione idronio H3O+, essa si comporta da:\r\n“,”desc”:””,”hint”:””,”answers”:{“5hlny”:{“id”:”5hlny”,”image”:””,”imageId”:””,”title”:”A) anfolita”},”hwiqt”:{“id”:”hwiqt”,”image”:””,”imageId”:””,”title”:”B) acido”},”bsnz9″:{“id”:”bsnz9″,”image”:””,”imageId”:””,”title”:”C) base”,”isCorrect”:”1″},”lmyul”:{“id”:”lmyul”,”image”:””,”imageId”:””,”title”:”D) anione”},”p0507″:{“id”:”p0507″,”image”:””,”imageId”:””,”title”:”E) catione”}}}},”results”:{“7qab7”:{“id”:”7qab7″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Quando l\u2019acqua H2O si trasforma in ione idronio H3O+, avviene …

{“questions”:{“s1xx4”:{“id”:”s1xx4″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2015\r\n\r\n \r\nQuale delle seguenti coppie di sostanze reagendo d\u00e0 una soluzione con pH inferiore a 7?\r\n“,”desc”:””,”hint”:””,”answers”:{“zp8rz”:{“id”:”zp8rz”,”image”:””,”imageId”:””,”title”:”A) Mg(s) + H2O(l)”},”xqm3b”:{“id”:”xqm3b”,”image”:””,”imageId”:””,”title”:”B) CaO(s) + H2O(l)”},”vkivj”:{“id”:”vkivj”,”image”:””,”imageId”:””,”title”:”C) K2CO3(s) + H2O(l)”},”fbh13″:{“id”:”fbh13″,”image”:””,”imageId”:””,”title”:”D) CO2(g) + H2O(l)”,”isCorrect”:”1″},”52j6j”:{“id”:”52j6j”,”image”:””,”imageId”:””,”title”:”E) …

{“questions”:{“ylgfk”:{“id”:”ylgfk”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1998\r\n\r\n \r\nSecondo la definizione di Bronsted-Lowry, quale dei seguenti ioni pu\u00f2 comportarsi solo come acido?\r\n“,”desc”:””,”hint”:””,”answers”:{“xrr8t”:{“id”:”xrr8t”,”image”:””,”imageId”:””,”title”:”A) NH4+“,”isCorrect”:”1″},”qkybv”:{“id”:”qkybv”,”image”:””,”imageId”:””,”title”:”B) PO33-“},”s1q4h”:{“id”:”s1q4h”,”image”:””,”imageId”:””,”title”:”C) HPO3—“},”kgevm”:{“id”:”kgevm”,”image”:””,”imageId”:””,”title”:”D) HPO4—“},”d2ynl”:{“id”:”d2ynl”,”image”:””,”imageId”:””,”title”:”E) HSO4–“}}}},”results”:{“ij8nq”:{“id”:”ij8nq”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \u00c8 bene conoscere la definizione di acido e …

{“questions”:{“50z0r”:{“id”:”50z0r”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2008\r\n\r\n \r\nIn relazione alla definizione di acido e di base secondo la teoria di Br\u00f8nsted e Lowry, indica l\u2019unica affermazione sbagliata:\r\n“,”desc”:””,”hint”:””,”answers”:{“osx53”:{“id”:”osx53″,”image”:””,”imageId”:””,”title”:”A) si definiscono acidi tutte le specie chimiche …

{“questions”:{“a3igs”:{“id”:”a3igs”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\np.san 2017\r\n\r\n \r\nVariando il valore di pH di una soluzione da 4 a 6 la concentrazione degli ioni idrogeno in soluzione:\r\n“,”desc”:””,”hint”:””,”answers”:{“l50oa”:{“id”:”l50oa”,”image”:””,”imageId”:””,”title”:”A) si dimezza”},”q1rwu”:{“id”:”q1rwu”,”image”:””,”imageId”:””,”title”:”B) aumenta di 100 volte”},”3xxqi”:{“id”:”3xxqi”,”image”:””,”imageId”:””,”title”:”C) diminuisce di …

{“questions”:{“dxpta”:{“id”:”dxpta”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\np.san 2013\r\n\r\n \r\nUna soluzione con pH = 9 \u00e8 da considerarsi:\r\n“,”desc”:””,”hint”:””,”answers”:{“ii7fj”:{“id”:”ii7fj”,”image”:””,”imageId”:””,”title”:”A) neutra “},”jy9kl”:{“id”:”jy9kl”,”image”:””,”imageId”:””,”title”:”B) debolmente acida”},”ex3rp”:{“id”:”ex3rp”,”image”:””,”imageId”:””,”title”:”C) acida”},”fx67g”:{“id”:”fx67g”,”image”:””,”imageId”:””,”title”:”D) basica”,”isCorrect”:”1″},”vyrhc”:{“id”:”vyrhc”,”image”:””,”imageId”:””,”title”:”E) isotonica”}}}},”results”:{“bfirz”:{“id”:”bfirz”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Un sistema di misura della acidit\u00e0 \u00e8 il \u00abpH\u00bb che utilizza …