How can I view an App's full name?
No, there's no way you can tell from the Home screen. 

One way to ensure you delete the correct one is to start the app and look at the title. 

Another way is to move one of them to a folder and then do a Spotlight search. Spotlight will show you the full name (up to the 30 or 50 character limit, I don't recall the actual number right now) as well as the folder name if it's in a folder.