Archives

{“questions”:{“pp11x”:{“id”:”pp11x”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\np.san 2010\r\n\r\n \r\nMescolando volumi uguali di soluzioni acquose equimolari di ammoniaca (NH3) e acido cloridrico (HCl) si ottiene, a 25 \u00b0C, una soluzione:\r\n“,”desc”:””,”hint”:””,”answers”:{“w8heg”:{“id”:”w8heg”,”image”:””,”imageId”:””,”title”:”A) basica”},”mvhjw”:{“id”:”mvhjw”,”image”:””,”imageId”:””,”title”:”B) acida”,”isCorrect”:”1″},”m7jxa”:{“id”:”m7jxa”,”image”:””,”imageId”:””,”title”:”C) poco basica”},”w8g6h”:{“id”:”w8g6h”,”image”:””,”imageId”:””,”title”:”D) neutra”},”fin9a”:{“id”:”fin9a”,”image”:””,”imageId”:””,”title”:”E) molto …

{“questions”:{“e0u59”:{“id”:”e0u59″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\np.san 2004 \r\n\r\n \r\nIl cloruro di ammonio in acqua d\u00e0:\r\n“,”desc”:””,”hint”:””,”answers”:{“ho7tf”:{“id”:”ho7tf”,”image”:””,”imageId”:””,”title”:”A) un sistema tampone”},”ix32h”:{“id”:”ix32h”,”image”:””,”imageId”:””,”title”:”B) un’idrolisi neutra”},”cd292″:{“id”:”cd292″,”image”:””,”imageId”:””,”title”:”C) un’idrlolisi basica”},”70zi3″:{“id”:”70zi3″,”image”:””,”imageId”:””,”title”:”D) una reazione di neutralizzazione”},”lwcs4″:{“id”:”lwcs4″,”image”:””,”imageId”:””,”title”:”E) un’idrolisi acida”,”isCorrect”:”1″}}}},”results”:{“zt6r9”:{“id”:”zt6r9″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Il cloruro di ammonio \u00e8 un …

{“questions”:{“5wyeo”:{“id”:”5wyeo”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2007\r\n\r\n \r\nSono elettroliti forti in acqua:\r\n“,”desc”:””,”hint”:””,”answers”:{“skv0t”:{“id”:”skv0t”,”image”:””,”imageId”:””,”title”:”A) tutte le anidridi”},”afvgo”:{“id”:”afvgo”,”image”:””,”imageId”:””,”title”:”B) tutti gli acidi”},”gcssi”:{“id”:”gcssi”,”image”:””,”imageId”:””,”title”:”C) tutti gli idrossidi”},”95ffg”:{“id”:”95ffg”,”image”:””,”imageId”:””,”title”:”D) tutti i sali solubili”,”isCorrect”:”1″},”lnpmb”:{“id”:”lnpmb”,”image”:””,”imageId”:””,”title”:”E) tutte le basi”}}}},”results”:{“ehm42”:{“id”:”ehm42″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Tutte le sostanze che sciogliendosi in …

{“questions”:{“gqx6e”:{“id”:”gqx6e”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2006 \r\n\r\n \r\nIl bicarbonato di sodio NaHCO3 in soluzione si comporta come:\r\n“,”desc”:””,”hint”:””,”answers”:{“mey3v”:{“id”:”mey3v”,”image”:””,”imageId”:””,”title”:”A) un sale assolutamente neutro”},”voc8d”:{“id”:”voc8d”,”image”:””,”imageId”:””,”title”:”B) un acido debole”},”q37ev”:{“id”:”q37ev”,”image”:””,”imageId”:””,”title”:”C) una base forte”},”k6cq4″:{“id”:”k6cq4″,”image”:””,”imageId”:””,”title”:”D) un acido forte”},”gl5dj”:{“id”:”gl5dj”,”image”:””,”imageId”:””,”title”:”E) una base debole”,”isCorrect”:”1″}}}},”results”:{“10gdt”:{“id”:”10gdt”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” …

{“questions”:{“lvmht”:{“id”:”lvmht”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2005\r\n\r\n \r\nIl bicarbonato di sodio sciolto in acqua d\u00e0 una soluzione:\r\n“,”desc”:””,”hint”:””,”answers”:{“pj9k9”:{“id”:”pj9k9″,”image”:””,”imageId”:””,”title”:”A) neutra in quanto il sale \u00e8 formato da due ioni a carattere neutro”},”xgzog”:{“id”:”xgzog”,”image”:””,”imageId”:””,”title”:”B) acida in quanto il …

{“questions”:{“tdxkz”:{“id”:”tdxkz”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2005\r\n\r\n \r\nIl pH della soluzione acquosa di un sale:\r\n“,”desc”:””,”hint”:””,”answers”:{“0ueu5”:{“id”:”0ueu5″,”image”:””,”imageId”:””,”title”:”A) \u00e8 sempre tra 6 e 8″},”74gum”:{“id”:”74gum”,”image”:””,”imageId”:””,”title”:”B) \u00e8 sempre neutro”},”bhvyk”:{“id”:”bhvyk”,”image”:””,”imageId”:””,”title”:”C) \u00e8 sempre basico”},”m4ukl”:{“id”:”m4ukl”,”image”:””,”imageId”:””,”title”:”D) dipende dalla natura degli ioni della sostanza”,”isCorrect”:”1″},”2ciho”:{“id”:”2ciho”,”image”:””,”imageId”:””,”title”:”E) …

{“questions”:{“9uks6”:{“id”:”9uks6″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2005\r\n\r\n \r\nQuando si scioglie in acqua il bicarbonato di sodio (NaHCO3) si forma una soluzione:\r\n“,”desc”:””,”hint”:””,”answers”:{“7vh6n”:{“id”:”7vh6n”,”image”:””,”imageId”:””,”title”:”A) neutra”},”f5ify”:{“id”:”f5ify”,”image”:””,”imageId”:””,”title”:”B) etereogenea”},”6ab50″:{“id”:”6ab50″,”image”:””,”imageId”:””,”title”:”C) debolmente basica”,”isCorrect”:”1″},”4dzc2″:{“id”:”4dzc2″,”image”:””,”imageId”:””,”title”:”D) debolmente acida”},”fdcrn”:{“id”:”fdcrn”,”image”:””,”imageId”:””,”title”:”E) fortemente acida”}}}},”results”:{“jw534”:{“id”:”jw534″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Il bicarbonato di sodio NaHCO3\u00a0\u00e8 …

{“questions”:{“tnbqv”:{“id”:”tnbqv”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2004\r\n\r\n \r\nUn elettrolita debole:\r\n“,”desc”:””,”hint”:””,”answers”:{“m1bsz”:{“id”:”m1bsz”,”image”:””,”imageId”:””,”title”:”A) non si dissocia mai completamente in soluzione acquosa, ma la dissociazione aumenta se si diluisce la soluzione”,”isCorrect”:”1″},”si8be”:{“id”:”si8be”,”image”:””,”imageId”:””,”title”:”B) pu\u00f2 dissociarsi completamente se la soluzione acquosa …

{“questions”:{“j1w6d”:{“id”:”j1w6d”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2004\r\n\r\n \r\nQuando si scioglie in acqua un sale che si pu\u00f2 considerare derivato da un acido forte e da una base forte, la soluzione che si ottiene ha …

{“questions”:{“xb2pv”:{“id”:”xb2pv”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1999 \r\n\r\n \r\nQuando si scioglie in acqua l’idrogenocarbonato (o bicarbonato) di sodio NaHCO3 , la soluzione risultante \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“iifz0”:{“id”:”iifz0″,”image”:””,”imageId”:””,”title”:”A) effervescente”},”itlo3″:{“id”:”itlo3″,”image”:””,”imageId”:””,”title”:”B) debolmente basica”,”isCorrect”:”1″},”7oebi”:{“id”:”7oebi”,”image”:””,”imageId”:””,”title”:”C) neutra”},”iu8pt”:{“id”:”iu8pt”,”image”:””,”imageId”:””,”title”:”D) debolmente acida”},”0nuhl”:{“id”:”0nuhl”,”image”:””,”imageId”:””,”title”:”E) fortemente acida”}}}},”results”:{“t91f4”:{“id”:”t91f4″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” L’idrogenocarbonato (bicarbonato) …