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【多选题】
下列离子方程式书写正确的是A.
． AgNO 3 溶液中滴入少量的 Na 2 S 溶液 2Ag ＋ +S 2 － → Ag 2 S↓
B.
．过量 CO 2 通入 Ca(ClO) 2 溶液中 ClO － +CO 2 +H 2 O → HCO 3 － +HClO
C.
．向 Na 2 CO 3 溶液中加入过量 CH 3 COOH 溶液 CO 3 2 － +2H ＋ → CO 2 ↑ +H 2 O
D.
．向 Ba(OH) 2 溶液中加入少量 NaHSO 3 溶液 2HSO 3 － +Ba 2 ＋ +2OH － → BaSO 3 ↓ +SO 3 2 － +2H 2 O
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