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{“questions”:{“ivx6s”:{“id”:”ivx6s”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2000\r\n\r\n \r\nLa reazione tra acido fosforico e idrossido di potassio produce:\r\n“,”desc”:””,”hint”:””,”answers”:{“un44r”:{“id”:”un44r”,”image”:””,”imageId”:””,”title”:”A) fosfato di potassio e idrogeno”},”baojo”:{“id”:”baojo”,”image”:””,”imageId”:””,”title”:”B) fosfato di potassio e acqua”,”isCorrect”:”1″},”bvupw”:{“id”:”bvupw”,”image”:””,”imageId”:””,”title”:”C) ossido di potassio e anidride fosforica”},”zvkw1″:{“id”:”zvkw1″,”image”:””,”imageId”:””,”title”:”D) fosfina …

{“questions”:{“5oddp”:{“id”:”5oddp”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2000\r\n\r\n \r\nIl nome ufficiale del composto P2O5 \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“oi46m”:{“id”:”oi46m”,”image”:””,”imageId”:””,”title”:”A) diossido di pentafosforo”},”pld9t”:{“id”:”pld9t”,”image”:””,”imageId”:””,”title”:”B) sesquiossido di fosforo”},”2gf6g”:{“id”:”2gf6g”,”image”:””,”imageId”:””,”title”:”C) anidride fosforosa”},”jhc83″:{“id”:”jhc83″,”image”:””,”imageId”:””,”title”:”D) ossido di fosforo”},”phg4w”:{“id”:”phg4w”,”image”:””,”imageId”:””,”title”:”E) pentossido di difosforo”,”isCorrect”:”1″}}}},”results”:{“e8ten”:{“id”:”e8ten”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nP2O5 \u00e8 un composto formato dal …

{“questions”:{“uh9r7”:{“id”:”uh9r7″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\n\r\n\r\n \r\nUNA sola delle seguenti affermazioni a proposito dello ione ammonio \u00e8 SCORRETTA. Quale?\r\n“,”desc”:””,”hint”:””,”answers”:{“ykixt”:{“id”:”ykixt”,”image”:””,”imageId”:””,”title”:”A) \u00c8 un acido”},”fiatx”:{“id”:”fiatx”,”image”:””,”imageId”:””,”title”:”B) \u00c8 carico positivamente”},”odob1″:{“id”:”odob1″,”image”:””,”imageId”:””,”title”:”C) Ha struttura tetraedrica”},”4t0sx”:{“id”:”4t0sx”,”image”:””,”imageId”:””,”title”:”D) \u00c8 formato da quattro atomi”,”isCorrect”:”1″},”cksgd”:{“id”:”cksgd”,”image”:””,”imageId”:””,”title”:”E) Non …

{“questions”:{“ds2g0”:{“id”:”ds2g0″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1999 \r\n\r\n \r\nL’ossido di potassio, reagendo con l’acqua, forma:\r\n“,”desc”:””,”hint”:””,”answers”:{“bvfxd”:{“id”:”bvfxd”,”image”:””,”imageId”:””,”title”:”A) un sale”},”i1uy9″:{“id”:”i1uy9″,”image”:””,”imageId”:””,”title”:”B) una soluzione basica”,”isCorrect”:”1″},”nmnvq”:{“id”:”nmnvq”,”image”:””,”imageId”:””,”title”:”C) una soluzione acida”},”xzvhg”:{“id”:”xzvhg”,”image”:””,”imageId”:””,”title”:”D) potassio libero”},”dzht5″:{“id”:”dzht5″,”image”:””,”imageId”:””,”title”:”E) la reazione non avviene”}}}},”results”:{“pqe1v”:{“id”:”pqe1v”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\n \r\n \r\n \r\n \r\n …

{“questions”:{“1dw69”:{“id”:”1dw69″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1999 \r\n\r\n \r\nNegli ossiacidi inorganici:\r\n“,”desc”:””,”hint”:””,”answers”:{“b5vt6”:{“id”:”b5vt6″,”image”:””,”imageId”:””,”title”:”A) gli atomi di idrogeno acidi sono legati sempre all’atomo centrale”},”8oxzj”:{“id”:”8oxzj”,”image”:””,”imageId”:””,”title”:”B) gli atomi di idrogeno acidi presentano legami ionici con gli atomi di ossigeno”},”pd2no”:{“id”:”pd2no”,”image”:””,”imageId”:””,”title”:”C) …

{“questions”:{“6ycjl”:{“id”:”6ycjl”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1997 \r\n\r\n \r\nLa sostanza NaOH puo’ formare un sale reagendo con:\r\n“,”desc”:””,”hint”:””,”answers”:{“tdds6”:{“id”:”tdds6″,”image”:””,”imageId”:””,”title”:”1) NH3“},”1zqra”:{“id”:”1zqra”,”image”:””,”imageId”:””,”title”:”2) CH4 “},”cri4n”:{“id”:”cri4n”,”image”:””,”imageId”:””,”title”:”3) HBr”,”isCorrect”:”1″},”f1gs4″:{“id”:”f1gs4″,”image”:””,”imageId”:””,”title”:”4) H2“},”sooln”:{“id”:”sooln”,”image”:””,”imageId”:””,”title”:”5) H2O”}}}},”results”:{“te34q”:{“id”:”te34q”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nNaOH \u00e8 l’idrossido di sodio, detto anche soda caustica.\u00a0\u00c8 una base …

{“questions”:{“namgv”:{“id”:”namgv”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2010 \r\n\r\n \r\nNel solfato di alluminio sono presenti:\r\n“,”desc”:””,”hint”:””,”answers”:{“fhp73”:{“id”:”fhp73″,”image”:””,”imageId”:””,”title”:”A) 2 atomi di alluminio, 3 di zolfo e 9 di ossigeno “},”n1bxr”:{“id”:”n1bxr”,”image”:””,”imageId”:””,”title”:”B) 2 atomi di alluminio, 3 di zolfo e …

{“questions”:{“59t4w”:{“id”:”59t4w”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2007 \r\n\r\n \r\nIndicare la definizione CORRETTA di molecola:\r\n“,”desc”:””,”hint”:””,”answers”:{“oju8d”:{“id”:”oju8d”,”image”:””,”imageId”:””,”title”:”A) la pi\u00f9 piccola quantit\u00e0 di una sostanza chimica che ne conserva le caratteristiche chimiche”,”isCorrect”:”1″},”oaq4g”:{“id”:”oaq4g”,”image”:””,”imageId”:””,”title”:”B) la pi\u00f9 piccola quantit\u00e0 di un …

{“questions”:{“3jb57”:{“id”:”3jb57″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1998 \r\n\r\n \r\nI pesi atomici di H, P ed O sono rispettivamente 1, 31 e 16 u.m.a. Il peso molecolare espresso in u.m.a. dell’ acido ortofosforico \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“5eely”:{“id”:”5eely”,”image”:””,”imageId”:””,”title”:”A) 48″},”wfs61″:{“id”:”wfs61″,”image”:””,”imageId”:””,”title”:”B) …

{“questions”:{“q699y”:{“id”:”q699y”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1999 \r\n\r\n \r\nIn quale dei seguenti composti il carbonio presenta un numero di ossidazione negativo?\r\n“,”desc”:””,”hint”:””,”answers”:{“pf7en”:{“id”:”pf7en”,”image”:””,”imageId”:””,”title”:”A) CO”},”dyue4″:{“id”:”dyue4″,”image”:””,”imageId”:””,”title”:”B) C2H6“,”isCorrect”:”1″},”o0fbs”:{“id”:”o0fbs”,”image”:””,”imageId”:””,”title”:”C) CCl4“},”2jvcd”:{“id”:”2jvcd”,”image”:””,”imageId”:””,”title”:”D) CHCL3“},”ljrgk”:{“id”:”ljrgk”,”image”:””,”imageId”:””,”title”:”E) C6H12O6“}}}},”results”:{“rpk42”:{“id”:”rpk42″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nCalcoliamo il numero di ossidazione di tutti i …