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