Yes... indeed it is!
No, it shouldn't be capitalized.
No it shouldn't be capitalized.
no
No, but the names of individual languages are capitalized.
no
It should only be capitalized if it forms part of a title.
No it is a common noun.
No, it is a common noun.
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Example: Ayala Avenue
The word "not" is typically not capitalized in a title unless it is the first word, a proper noun, or part of a hyphenated word.
No, but it is just one word: saltpeter.
No, except if the word is used at the beginning of a sentence.