按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是
A: [img=36x22]1803b7ce1d589db.png[/img]
B: [img=42x26]1803b7ce24cc0b1.png[/img]
C: [img=52x26]1803b7ce2c3e823.png[/img]
D: [img=46x24]1803b7ce33e3d23.png[/img]
A: [img=36x22]1803b7ce1d589db.png[/img]
B: [img=42x26]1803b7ce24cc0b1.png[/img]
C: [img=52x26]1803b7ce2c3e823.png[/img]
D: [img=46x24]1803b7ce33e3d23.png[/img]
举一反三
- 按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是 A: [img=36x22]1803464f85a069c.png[/img] B: [img=42x26]1803464f8e670f2.png[/img] C: [img=52x26]1803464f97f52fd.png[/img] D: [img=46x24]1803464fa0baafe.png[/img]
- 按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是……………………( ) A: Cl- B: [img=42x26]180333fcfdc152d.png[/img] C: [img=53x26]180333fd06c2713.png[/img] D: [img=46x24]180333fd1030082.png[/img]
- 按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是 A: [img=29x21]18033dbbc555133.png[/img] B: [img=42x26]18033dbbce8c563.png[/img] C: [img=53x26]18033dbbd6fcf40.png[/img] D: [img=46x24]18033dbbe000f8f.png[/img]
- 按酸碱质子理论考虑,在水溶液中既可作酸亦可作碱的物质是 A: [img=41x23]1803818757f07a5.png[/img] B: [img=52x24]180381876051984.png[/img] C: [img=60x27]1803818768bca5f.png[/img] D: [img=52x21]18038187715a4c4.png[/img]
- 设X,Y为两个随机变量,且[img=179x25]1803395d555effc.png[/img] , [img=226x25]1803395d61f1a43.png[/img] ,则[img=143x25]1803395d6f00057.png[/img]= ( ). A: 1/7 B: 3/7 C: 4/7 D: 5/7