单项选择题

3

+3CO32

+3H2O=2Al(OH)3

2

B ．硫酸铜与烧碱反应：CuSO4+2OH-

=Cu(OH)2 > ↓+ >SO42-

C ．苯酚与碳酸钠反应：2C6H5OH+CO32-=2C6H5O-+CO2 ↑+H2O

  D ．碳酸钡与硫酸反应： >Ba2++ >SO42-=BaSO4

A.足量硫酸铝与纯碱反应：2Al3
B.硫酸铜与烧碱反应：CuSO4+2OH-
C.苯酚与碳酸钠反应：2C6H5OH+CO32-=2C6H5O-+CO2
D.碳酸钡与硫酸反应：
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