[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feHJ9yP4YA6cwLavG_cDytirjfXxU3wju8p1Q9w1Ug70":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-05-30 17:08:09",192374892,[8,9,10,11],"由于s区元素的电负性小,所以都形成典型的离子型化合物","在s区元素中,Be、Mg因表面形成致密的氧化物保护膜而对水比较稳定","s区元素的单质都有很强的还原性","除Be、Mg外,其它s区元素的硝酸盐或氯酸盐都可做焰火材料",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},25,"9d22e7ce87053fc564a88bd3ee1e8b3e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F935c09af00bca90a3a1479012b53ddc9.jpg","无机化学（二）","work_41310899","第12章 碱金属和碱土金属","关于s区元素的性质,下列叙述中不正确的是",[21,26,35,44,53,62,71,80,90,99],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],192374893,[30,31,32,33],"Be","K, Ru, Cs","IIA","Li","至今未发现有过氧化物的是",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],192374894,[39,40,41,42],"LiF","RbCl","LiCl","BeCl2","下列卤化物中,共价性最强的是",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],192374896,[48,49,50,51],"O2","N2","NH3","H2","钙在空气中燃烧所得到的产物之一用水湿润后,所放出的气体是",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],192374898,[57,58,59,60],"对角线规则","惰性电子对效应","镧系收缩","R-O-H规则","Li和Mg及其它们的化合物彼此间性质相似,可以用来解释此现象的是",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],192374900,[66,67,68,69],"K2O2","Na2O2","KO2","KO3","和水反应得不到\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8d1a322d1250f5e2ee17314829a3fac3.webp\">的是",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],192374903,[75,76,77,78],"1","2","3","4","下列反应方程式书写不正确的是在过氧化钠固体上滴加热水 Na2O2 +2H2O(热) = 2NaOH + H2O2将二氧化碳通过过氧化钠 2Na2O2 + 2CO2 = 2Na2CO3 + O2金属钠与氯化钾共热 Na(s) + KCl =NaCl + K(g) 在酸性高锰酸钾溶液中滴加过氧化钠 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5aed16691429cd5d1e1685065489ad55.webp\">",{"answer":81,"createTime":82,"id":83,"options":84,"question":89,"source":24,"type":25},[],"2025-05-30 17:08:10",192374908,[85,86,87,88],"Be(OH)2","Mg(OH)2","Ca(OH)2","LiOH","下列氢氧化物中碱性最强的是",{"answer":91,"createTime":82,"id":92,"options":93,"question":98,"source":24,"type":25},[],192374915,[94,95,96,97],"BeCO3","MgCO3","CaCO3","BaCO3","下列碳酸盐中热稳定最高的是",{"answer":100,"createTime":82,"id":101,"options":102,"question":107,"source":24,"type":25},[],192374920,[103,104,105,106],"重晶石BaSO4","生石膏 CaSO4\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8deac42e6e55d3bee9bfcac6a7791267.webp\">2H2O","芒硝Na2SO4","萤石CaF2","下列矿物的化学式错误的是"]