Question

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

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

Answer 1

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。

Answer 2

D.BaCl2和Na2SO4

Answer 3

D

Answer 4

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