you cant
because they both want to gain full outer shell. They don't have completed outer shells. Hydrogen has one electron in it's outer shell so it wants to ger rid of that by giving it to oxygen. (oxygen itself needs two electrons to get full outer shell which is 8 electrons, so two hydrogens are needed to complete one oxygen atom) and then water is formed.
I have no idea why
just throw it in the garbage
no
take it to a video shop :)
CaS Because Calcium has 2 electrons in its outer shell- so it needs to get rid of those (Ca2+) Sulfur has 6 electrons in its outer shell- so it needs 2 more to have a full outer shell (S2-)
Most times it does not work
Nope
you probably could but i know you can with mayo =)
The disc can be professionally polished and cleaned
use windex it really works!! :)