No
If conviction was for an offense that would have been a felony if committed by an adult, then no.
That depends on what charges are on your juvenile record.
Yes
no.
No
No
Yes.
No.
Nope
It would be extremely difficult, you will never, ever be able to own a gun of any kind.
In the U.S. you cannot legally own a gun if you have a felony on your record, unless your rights have been restored.
Yes, a felon can pawn a gun but will not be able to retrieve the gun due to the felony record.