J.K. Rowling never revealed the process in making a Horcrux.
The sword of Gryfiindor.
Ron
Because murder rips the soul apart, and a part of one's soul must be split off in order for it to be placed in a Horcrux.
No, he didn't die because he was Horcrux. Had he not been a Horcrux the killing curse would have killed Harry, instead of just the Horcrux.
Nagini the snake was the last Horcrux to be be created and destroyed.
There is no eighth horcrux, as Voldemort only created seven.
Yes, the horcrux inside of Harry Potter
The reason he's an unintended horcrux is because the night he tried to kill Harry, he put a piece of his soul inside him(how you make a horcrux). He didn't mean to, though.
Using the venom from it's fangs.. . .The basilisk's venom is one of the substances used to destroy a Horcrux, which is why Ron and Hermione go down into the Chamber of Secrets in Deathly Hallows, so that they can find a fang from the basilisk's skeleton and use to to destroy Hufflepuff's chalice, the Horcrux.
No, but the diary Horcrux, was destroyed.
No she didnt....Dumbledore tells Harry that he is a Horcrux
No one. In this story, the only person to make horcruxes is Voldemort