There seems to be some confusion between these two words and how to use them correctly. Let’s take a look.

No

• No answers a yes/no question.

“Are you going to the movies tonight?”

“No, I have to do my homework.”

• No precedes a noun that has no article.

He has no money to go on vacation.

• No can be used before a noun that is preceded by an adjective, but it is not used before any, much, many, or enough.

We have no green apples today.

Not

• Not precedes a noun that has an article.

Thursday is not the best day of the week, Friday is.

• Not precedes any, much, many, or enough.

Not many people are interested in watching that film.

There is not enough coffee left to make another pot.

• Not makes a verb negative.

I do not want to do my homework. I want to go to the movies.

Does that help? Can you write an example in the comments?

Image: sippakorn / FreeDigitalPhotos.net