[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fWVP4zkOx5gwACBINue1IDkhvXAnOZ1fV-GnOZ0QKiYg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-05-04 07:30:33",357761987,[8,9,10,11],"Kspy = x2y","Kspy =1\u002F2 x2y","Kspy =4 x2y","Kspy = xy",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","难溶强电解质A2B在水溶液中达到溶解平衡时,[A+] = x mol•L-1,[B2+]= y mol•L-1,则下列等式中正确的是",[18,29,38,47,56,65,68,77,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],357761982,[22,23,24,25],"H2O,NH3,H2S","BF3,NH3,CH4","PH3,CO2,H2S","BF3,CH4,SnCl4","下列分子中,其中心原子均采用不等性s p 3 杂化的一组是","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],357761983,[33,34,35,36],"dsp2","sp3","d2sp3","sp3d2","6]3+属内轨型配离子,其中心离子的杂化类型为",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],357761984,[42,43,44,45],"增加[H+]","增加Cl2气分压","增加[Cl-]","增加[Cr2O72-]","今有电池:(-)Pt│Cr2O72-,H+,Cr3+‖Cl-│Cl2(g),Pt(+),要增加电池电动势的办法是",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],357761985,[51,52,53,54],"NH3-NH4Cl","H2CO3-NaHCO3","NaHCO3-Na2CO3","H2CO3-Na2CO3","已知NH3水的pKby = 4.75,H2CO3的pKa1y = 6.38、pKa2y =10.25,欲配制pH = 9.00的缓冲溶液,可选择的缓冲对是",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],357761986,[60,61,62,63],"H2O2\u002FH2O","IO3-\u002FI-","MnO2 \u002FMn2+","MnO4-\u002FMnO42-","电极电位与pH无关的电对是",{"answer":66,"createTime":5,"id":6,"options":67,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],357761988,[72,73,74,75],"2Fe3+ + Cu = 2Fe2+ + Cu2+","Sn4+ + Cu = Sn2+ + Cu2+","Cu + Fe2+ = Cu2+ + Fe","Sn4+ + 2Fe = Sn2+ + 2Fe3+","已知j y(Fe3+\u002FFe2+) = 0.77 V,j y(Cu2+\u002FCu) = 0.34 V,j y(Sn4+\u002FSn2+)=0.15 V,j y(Fe2+\u002FFe)= - 0.44 V,在标准状态下,下列反应能正向进行的是",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],357761989,[81,82,83,84],"HCl-Cl-","H2CO3-CO32-","H2CO3-HCO3-","NH4+-NH3","下列各组分子离子中,不属于共轭关系的是",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],357761990,[90,91,92,93],"N2 和 CCl4","CHCl3 和 CH4","H2O 和 CH3OH","H2S 和 BCl3","下列各组分子间同时存在取向力、诱导力、色散力和氢键的是",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],357761991,[99,100,101,102],"[Cu(NH3)4]2+","[Ag(NH3)2]+","[Cu(en)2]2+","[CaY]2-","相同条件下,下列配离子中最稳定的是"]