将硝酸银溶液滴入盐A的溶液中,产生不溶于稀硝酸的白色沉淀.将钠盐B的溶液滴入盐A的溶液中也产生不溶于稀硝酸的白色沉淀.则A和B的化学式分别是A.Na2SO4和BaCl2 B.BaCl2和CaCO3 C.Ba(NO3)2和Na2SO4 D.B

将硝酸银溶液滴入盐A的溶液中,产生不溶于稀硝酸的白色沉淀.将钠盐B的溶液滴入盐A的溶液中也产生不溶于稀硝酸的白色沉淀.则A和B的化学式分别是A.Na2SO4和BaCl2 B.BaCl2和CaCO3 C.Ba(NO3)2和Na2SO4 D.B
将硝酸银溶液滴入盐A的溶液中,产生不溶于稀硝酸的白色沉淀.将钠盐B的溶液滴入盐A的溶液中也产生不溶于稀硝酸的白色沉淀.则A和B的化学式分别是
A.Na2SO4和BaCl2 B.BaCl2和CaCO3 C.Ba(NO3)2和Na2SO4 D.BaCl2和Na2SO4

将硝酸银溶液滴入盐A的溶液中,产生不溶于稀硝酸的白色沉淀.将钠盐B的溶液滴入盐A的溶液中也产生不溶于稀硝酸的白色沉淀.则A和B的化学式分别是A.Na2SO4和BaCl2 B.BaCl2和CaCO3 C.Ba(NO3)2和Na2SO4 D.B
选D
A中含氯离子,B中含硫酸根离子,所以A是氯化钡,B是硫酸钠.

D

D.BaCl2和Na2SO4

This is a year of difficulty for many corporations and organizations. Fun is in short supply. The heady days of the 90's are long gone. Many organizations are rethinking their strategy and approach to...

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