Hey all

I'm just starting up as an Instructional Designer and I've just run into two problems.

1. What's the difference between "cannot" and "can not"? Is it simply that one of them is bad English? Or is it american vs imperial?
2. In English, apostrophe (') is used as an aid for possessive constructs and shorts with omitted letters, but what about acute accent (´)? In what situations is it being used?

I'd appreciate a rather quick answer, although you will not loose any money or your neck if you're late.

1-- Can not is a less common form of cannot.

2-- accents (acute and grave) are diacritical marks used over certain letters in foreign words or words of foreign origin, as in déjà vu, cliché and ménage à trois.
For this, I thank thee.