|  |  |  |  |  |  |  |  |  | 
   
    | • | Melting
    (___________) and 
 |  | 
   
    |  | 
   
    |  | boiling (_________) pts 
 |  | 
   
    |  | 
   
    | • | In general the
    melting and boiling temps are 
 |  | 
   
    |  | 
   
    |  | much _______for
    ionic cmpds than for 
 |  | 
   
    |  | 
   
    |  | molecular
    (covalent) cmpds. The ionic bond 
 | 
   
    |  | 
   
    |  | is very strong
    and requires a lot of (heat) 
 |  | 
   
    |  | 
   
    |  | energy  to break the bond. The bond btn 
 |  | 
   
    |  | 
   
    |  | molecular species
    is not as strong. 
 |  |