а) Ag+ ------------------- 1. HCl
б) Ba2+ ------------------ 2. K2SO4
в) Ca2+ -------------------3. Na2CO3
г) NH+4 -------------------5. NaOH
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а) Ag+ ------------------- 1. HCl
б) Ba2+ ------------------ 2. K2SO4
в) Ca2+ -------------------3. Na2CO3
г) NH+4 -------------------5. NaOH