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A.Fe3￡??￠Al3￡??￠Cl￡-?￠NO3￡-
B.K￡??￠Na￡??￠I￡-?￠SO42-
C.Ag￡??￠Ca2￡??￠NH4￡??￠NO3-
D.Na￡??￠Ba2+?￠CO32-?￠SO42￡-
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A.Fe3￡??￠Al3￡??￠Cl￡-?￠NO3￡-
B.K￡??￠Na￡??￠I￡-?￠SO42-
C.Ag￡??￠Ca2￡??￠NH4￡??￠NO3-
D.Na￡??￠Ba2+?￠CO32-?￠SO42￡-
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