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{“questions”:{“nwh6e”:{“id”:”nwh6e”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2008 \r\n\r\n \r\n Il legame covalente si forma quando due atomi:\r\n“,”desc”:””,”hint”:””,”answers”:{“861nr”:{“id”:”861nr”,”image”:””,”imageId”:””,”title”:”A) trasferiscono tutti gli elettroni di valenza da un atomo ad un altro “},”flumt”:{“id”:”flumt”,”image”:””,”imageId”:””,”title”:”B) trasferiscono uno o pi\u00f9 …

{“questions”:{“v5un2”:{“id”:”v5un2″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2008 \r\n\r\n \r\nCl-Cl rappresenta la molecola biatomica del cloro; il legame che caratterizza tale sostanza \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“3p4wg”:{“id”:”3p4wg”,”image”:””,”imageId”:””,”title”:”A) metallico”},”mh3d1″:{“id”:”mh3d1″,”image”:””,”imageId”:””,”title”:”B) dativo”},”oqiun”:{“id”:”oqiun”,”image”:””,”imageId”:””,”title”:”C) covalente puro”,”isCorrect”:”1″},”9y1pz”:{“id”:”9y1pz”,”image”:””,”imageId”:””,”title”:”D) covalente polare”},”25vfq”:{“id”:”25vfq”,”image”:””,”imageId”:””,”title”:”E) ionico”}}}},”results”:{“ofj83”:{“id”:”ofj83″,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nGli elettroni dei gusci esterni …

{“questions”:{“bqzsq”:{“id”:”bqzsq”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2008 \r\n\r\n \r\n Nella molecola NH3, l\u2019atomo di azoto mette in compartecipazione con ciascun atomo di H:\r\n“,”desc”:””,”hint”:””,”answers”:{“3a3pa”:{“id”:”3a3pa”,”image”:””,”imageId”:””,”title”:”A) un elettrone”,”isCorrect”:”1″},”77zru”:{“id”:”77zru”,”image”:””,”imageId”:””,”title”:”B) due elettroni”},”f063s”:{“id”:”f063s”,”image”:””,”imageId”:””,”title”:”C) tre elettroni”},”qgzqz”:{“id”:”qgzqz”,”image”:””,”imageId”:””,”title”:”D) quattro elettroni”},”0oask”:{“id”:”0oask”,”image”:””,”imageId”:””,”title”:”E) nessun elettrone”}}}},”results”:{“0h90l”:{“id”:”0h90l”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nPer …

{“questions”:{“sj35j”:{“id”:”sj35j”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2006 \r\n\r\n \r\nIn un legame covalente omopolare gli elettroni sono distribuiti:\r\n“,”desc”:””,”hint”:””,”answers”:{“a6nzz”:{“id”:”a6nzz”,”image”:””,”imageId”:””,”title”:”A) in egual misura tra atomi diversi “},”8x5kw”:{“id”:”8x5kw”,”image”:””,”imageId”:””,”title”:”B) in diversa misura tra atomi diversi”},”v3ndj”:{“id”:”v3ndj”,”image”:””,”imageId”:””,”title”:”C) in egual misura tra …

{“questions”:{“tn43p”:{“id”:”tn43p”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2006 \r\n\r\n \r\nIndicare il legame pi\u00f9 corto tra quelli proposti di seguito:\r\n“,”desc”:””,”hint”:””,”answers”:{“6w4h8”:{“id”:”6w4h8″,”image”:””,”imageId”:””,”title”:”A) doppio C-O “},”l0a8c”:{“id”:”l0a8c”,”image”:””,”imageId”:””,”title”:”B) doppio C-C”},”p1m3t”:{“id”:”p1m3t”,”image”:””,”imageId”:””,”title”:”C) semplice C-C”},”dmrod”:{“id”:”dmrod”,”image”:””,”imageId”:””,”title”:”D) triplo C-C”,”isCorrect”:”1″},”o1lmo”:{“id”:”o1lmo”,”image”:””,”imageId”:””,”title”:”E) semplice C-N”}}}},”results”:{“k2p9n”:{“id”:”k2p9n”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nDue atomi coinvolti in un …

{“questions”:{“q74vr”:{“id”:”q74vr”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2005 \r\n\r\n \r\nNelle molecole degli acidi ossigenati gli atomi di idrogeno:\r\n“,”desc”:””,”hint”:””,”answers”:{“bv1c8”:{“id”:”bv1c8″,”image”:””,”imageId”:””,”title”:”A) sono legati sempre all’atomo centrale “},”57th9”:{“id”:”57th9″,”image”:””,”imageId”:””,”title”:”B) sono legati in modo covalente agli atomi di ossigeno”,”isCorrect”:”1″},”6nfap”:{“id”:”6nfap”,”image”:””,”imageId”:””,”title”:”C) presentano legami …

{“questions”:{“egzrd”:{“id”:”egzrd”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2004 \r\n\r\n \r\nUna sola delle seguenti affermazioni a proposito del legame covalente NON \u00e8 corretta. Quale?\r\n“,”desc”:””,”hint”:””,”answers”:{“uqe7e”:{“id”:”uqe7e”,”image”:””,”imageId”:””,”title”:”A) Non \u00e8 direzionale”,”isCorrect”:”1″},”5jejz”:{“id”:”5jejz”,”image”:””,”imageId”:””,”title”:”B) Pu\u00f2 essere polarizzato o non polarizzato”},”d5wdk”:{“id”:”d5wdk”,”image”:””,”imageId”:””,”title”:”C) Pu\u00f2 essere semplice, …

{“questions”:{“rx5bk”:{“id”:”rx5bk”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2001 \r\n\r\n \r\n Nella molecola HCI, i due atomi sono uniti da un legame:\r\n“,”desc”:””,”hint”:””,”answers”:{“90l03”:{“id”:”90l03″,”image”:””,”imageId”:””,”title”:”A) covalente polarizzato”,”isCorrect”:”1″},”qksua”:{“id”:”qksua”,”image”:””,”imageId”:””,”title”:”B) a ponte di idrogeno”},”alplz”:{“id”:”alplz”,”image”:””,”imageId”:””,”title”:”C) ionico “},”6zuj0”:{“id”:”6zuj0″,”image”:””,”imageId”:””,”title”:”D) dativo”},”sd8l8″:{“id”:”sd8l8″,”image”:””,”imageId”:””,”title”:”E) covalente puro”}}}},”results”:{“mpt8j”:{“id”:”mpt8j”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nGli elettroni dei …

{“questions”:{“m1zv1”:{“id”:”m1zv1″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2000\r\n\r\n \r\n Il legame covalente \u00e8 polarizzato quando:\r\n“,”desc”:””,”hint”:””,”answers”:{“j6rv5”:{“id”:”j6rv5″,”image”:””,”imageId”:””,”title”:”A) si stabilisce tra atomi eguali”},”ayvje”:{“id”:”ayvje”,”image”:””,”imageId”:””,”title”:”B) richiede la compartecipazione di due coppie elettroniche”},”bp1r5″:{“id”:”bp1r5″,”image”:””,”imageId”:””,”title”:”C) si stabilisce tra atomi con differente elettronegativit\u00e0″,”isCorrect”:”1″},”xfvh5″:{“id”:”xfvh5″,”image”:””,”imageId”:””,”title”:”D) richiede …

{“questions”:{“m7cjy”:{“id”:”m7cjy”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1998\r\n\r\n \r\nPer triplo legame si intende:\r\n“,”desc”:””,”hint”:””,”answers”:{“w7hf9”:{“id”:”w7hf9″,”image”:””,”imageId”:””,”title”:”A) un legame covalente tra tre molecole”},”yjxbn”:{“id”:”yjxbn”,”image”:””,”imageId”:””,”title”:”B) un legame tra tre ioni monovalenti”},”w956a”:{“id”:”w956a”,”image”:””,”imageId”:””,”title”:”C) un legame tra ioni trivalenti”},”ay7s4″:{“id”:”ay7s4″,”image”:””,”imageId”:””,”title”:”D) un legame derivante dalla compartecipazione …