Harry Potter questions + BQ's?

Most of the questions has to do with the Deathly Hallows book/movie. I was on youtube and i was looking up The Deathly Hallows part 2 trailer (the one from the blue ray dvd) and Voldermolt put his hands on Harry's head. Did Voldermolt do that in the book?



BQ1: Who's wand was used to kill Voldermolt

BQ2: Why did Snape dieHarry Potter questions + BQ's?
I thought I'd point this out: you consistently write 'Voldermolt' instead of Voldemort (pronounced Voldemor, according to Rowling. In the films they pronounce the 't' at the end though).



Voldemort only touches Harry's head once in the books, right after his resurrection in the fourth book.



Two wands actually, if memory serves. Namely Draco's wand, after Harry takes it, and the Elder-wand. The reason for this is that the Elder-wand is Harry's and it is also somewhat special, so when Voldemort uses it to fire the Killing Curse and the spell collides with Harry's Expelliamus, the curse is reflected and kills Voldemort instead.



Snape died because Voldemort thought he was the master of the Elder-wand and killed him to become the master himself. Too bad Harry was the master at the time.Harry Potter questions + BQ's?
I don't think he did.



1: Draco's wand that Harry had taken, I believe.

2: Voldemort killed him because he thought Snape was the true owner of the Elder Wand, when it was actually Harry. It had been Dumbledore's, then became Draco's, then Harry overpowered Draco and it became his.