|  | 
   
    |  |  |  |  |  |  |  |  |  |  |  |  
    | • | 1A
    salts, NO3-’s, acetates (CH3COO-), 
 |  |  
    |  |  |  
    |  | NH4+’s
    are very soluble. 
 |  |  
    |  |  
    | • | Cl-’s,
    Br-’s and I-’s are soluble except when 
 |  
    |  |  
    |  | combined with Ag+,
    Pb2+, Hg22+. 
 |  |  
    |  |  
    | • | CO32-’s,
    PO43-’s, S 2-’s generally insoluble 
 |  |  
    |  |  |  
    |  | (except for 1A’s
    and NH4+) 
 |  |  
    |  |  
    | • | OH-’s:
    Ba2+, 1A’s are soluble; others 
 |  |  
    |  |  |  
    |  |  
    |  | generally
    insoluble 
 |  |  
    |  |  
    | • | **The
    SO42-’s of Ba2+, Ag+, Ca2+,
    Sr2+, 
 |  |  
    |  |  |  
    |  | Pb2+are
    insoluble. Others are soluble. 
 |  |  |  |