By a cationic Lewis acid is meant a cation with {HEAD ~ a positive charge} such as Ag+, {TAIL ~ H+}, and Na+ 
such as
By a cationic Lewis acid is meant a cation with { HEAD ~ a positive charge } such as Ag+ , { TAIL ~ H+ } , and Na+
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH