I need some help diagraming sentences.....Clauses, Or could you just help me decide what they are,please help?

I cant figure out if they are a Adjective clause, Adverb clause, or a Noun clause... Can you help me classify them.

Sentences:
1. We finally found the key in the locker where i had left my luggage.
2. Rosemary naively believed that she would not be recognized with a new hairstyle.
3. After 6:00 p.m., every door was locked so that it was impossible to leave or enter the building
4. Please give this message to whoever answers the telephone.
5.Chemistry is the subject with which he has the most difficulty.
6. The director was pleased because his cast gave an outstanding performance.

Please help!!!!

Ok, I'll be glad to help, but first of all, a little tip. Adverb clauses tell Where something is, How it was done, In what manner it was done (sadly for example). Adjective clauses give more info about the noun.

Ok, so, number 1: Where I had left my luggage. The word where clues you that it is adverb clause.

Number 2: That she would not be recognized is a noun clause. It tells what she believed and is a "thing". With a new hairstyle is a second adverb clause modifying recognized, which is the verb within the noun clause. "With a new hairstyle" tells "how" she would not be recognized.

Number 3: that it was impossible to leave..... is an adverb clause. "So that" answers in what manner.

Number 4: whoever answers the phone ---Noun clause, a person.

Number 5: with which he has the most difficulty. THis describes Chemistry, so it is an adjective clause.

Number 6: because his cast gave..... adverb cluase describes the very pleased. Tells why.

Can't really help you with diagramming because I don't see how I could explain where everything goes. I'd need to show you. Feel free to email me (check my profile) if you have questions about all of this.