相同质量的尿素CO(NH[img=7x22]1803dd61f321e36.png[/img])[img=7x22]1803dd61f321e36.png[/img]和葡萄糖C[img=7x22]1803dd620476232.png[/img]H[img=13x22]1803dd620ce2498.png[/img]O[img=7x22]1803dd620476232.png[/img]分别溶于100g水中,所得两溶液的沸点相同。( )
举一反三
- 假定Sb[img=7x22]1803dd49c179016.png[/img]S[img=7x22]1803dd49c99e260.png[/img](s)的溶解度为x mol·L[img=17x22]1803dd49d248c3b.png[/img],则[img=28x28]1803dd49dafed3c.png[/img]应为( )。 A: [img=28x28]1803dd49e3a9672.png[/img]=x[img=7x22]1803dd49ec515a7.png[/img]·x[img=7x22]1803dd49f5a7624.png[/img]= x[img=7x22]1803dd49fdc3ba4.png[/img] B: [img=28x28]1803dd4a062ad6a.png[/img]=2x·3x=6x[img=7x22]1803dd4a0f09d1e.png[/img] C: [img=28x28]1803dd4a062ad6a.png[/img]=x[img=7x22]1803dd4a0f09d1e.png[/img] D: [img=28x28]1803dd4a062ad6a.png[/img]=(2x)[img=7x22]1803dd4a323468e.png[/img]·(3x)[img=7x22]1803dd4a3a6fefa.png[/img]=108x[img=7x22]1803dd4a4341475.png[/img]
- 氯化二氯·三氨·一水合钴(Ⅲ)的化学式为( )。 未知类型:{'options': ['[Co(H[img=7x22]17de880edf00db1.png[/img]O)(NH[img=7x22]17de880eeb6481b.png[/img])[img=7x22]17de880ef7a1b88.png[/img]Cl[img=7x22]17de880f04d0b7a.png[/img]]Cl', '[Co(NH[img=7x22]17de880eeb6481b.png[/img])[img=7x22]17de880ef7a1b88.png[/img](H[img=7x22]17de880edf00db1.png[/img]O)Cl[img=7x22]17de880f04d0b7a.png[/img]]Cl', '[CoCl[img=7x22]17de880f04d0b7a.png[/img](NH[img=7x22]17de880eeb6481b.png[/img])[img=7x22]17de880ef7a1b88.png[/img](H[img=7x22]17de880edf00db1.png[/img]O)]Cl', '[Co(NH[img=7x22]17de880eeb6481b.png[/img])[img=7x22]17de880ef7a1b88.png[/img](H[img=7x22]17de880edf00db1.png[/img]O)Cl]'], 'type': 102}
- 四异硫氰根·二氨合钴(Ⅲ)酸铵的化学式是( )。 A: (NH[img=7x22]1803dd4f25939a1.png[/img])[img=7x22]1803dd4f2ebfafc.png[/img][Co(SCN)[img=7x22]1803dd4f36f65fc.png[/img](NH[img=7x22]1803dd4f4053c5b.png[/img])[img=7x22]1803dd4f48e9065.png[/img]] B: (NH[img=7x22]1803dd4f510f758.png[/img])[img=7x22]1803dd4f59ada5f.png[/img][Co(NH[img=7x22]1803dd4f620db59.png[/img])[img=7x22]1803dd4f6ba977d.png[/img](SCN)[img=7x22]1803dd4f74a2468.png[/img]] C: NH[img=7x22]1803dd4f510f758.png[/img][Co(NCS)[img=7x22]1803dd4f74a2468.png[/img](NH[img=7x22]1803dd4f620db59.png[/img])[img=7x22]1803dd4f6ba977d.png[/img]] D: NH[img=7x22]1803dd4f510f758.png[/img][Co(NH[img=7x22]1803dd4f620db59.png[/img])[img=7x22]1803dd4f6ba977d.png[/img](NCS)[img=7x22]1803dd4f74a2468.png[/img]]
- 下列反应中[img=45x26]1803dd609acfce2.png[/img]>0的是 ( ) A: 2H[img=7x22]1803dd60a43da71.png[/img](g)+O[img=7x22]1803dd60a43da71.png[/img](g)=2H[img=7x22]1803dd60a43da71.png[/img]O(g) B: N[img=7x22]1803dd60a43da71.png[/img](g)+3H[img=7x22]1803dd60a43da71.png[/img](g)=2NH[img=7x22]1803dd60cec07da.png[/img](g) C: NH[img=7x22]1803dd60d7395bb.png[/img]Cl(s)= NH[img=7x22]1803dd60e03f2ee.png[/img](g)+HCl(g) D: C(s)+O[img=7x22]1803dd60a43da71.png[/img](g)=CO[img=7x22]1803dd60a43da71.png[/img](g)
- 往化合物CoCl[img=7x22]1803dd4f62b8e24.png[/img]•5NH[img=7x22]1803dd4f6b1b705.png[/img]中加入AgNO[img=7x22]1803dd4f74a67af.png[/img]溶液有AgCl沉淀生成,样品过滤沉淀后再加AgNO[img=7x22]1803dd4f7dc089c.png[/img]溶液并加热至沸,又有AgCl沉淀生成,其重量为原来沉淀的一半,此化合物的 结构式为( )。 A: [Co(NH[img=7x22]1803dd4f86015fd.png[/img])[img=7x22]1803dd4f8e0a139.png[/img]Cl[img=7x22]1803dd4f966d7e9.png[/img]]Cl B: [Co(NH[img=7x22]1803dd4f86015fd.png[/img])[img=7x22]1803dd4f8e0a139.png[/img]Cl]Cl[img=7x22]1803dd4fb01f87a.png[/img] C: [Co(NH[img=7x22]1803dd4f86015fd.png[/img])[img=7x22]1803dd4f8e0a139.png[/img]Cl[img=7x22]1803dd4f966d7e9.png[/img]][img=5x8]1803dd4fd31f5f4.png[/img]2NH[img=7x22]1803dd4fdc04cfa.png[/img] D: [Co(NH[img=7x22]1803dd4f86015fd.png[/img])[img=7x22]1803dd4fed8c07f.png[/img]H[img=7x22]1803dd4ff63ddaa.png[/img]O]Cl