The congress

If you're talking about ratified treaties, they are only passed by the senate whereas laws have to go through both chambers. Also, treaties are proposed by the executive only whereas statute law can be proposed by the executive or members of Congress.

I don't mean the treaties, I meant laws and acts when we say for instance:' a law passed by the Congress' is it the same as a ratified law or the ratified is final and the passed by Congress is waiting for being ratified?

You wouldn't typically use the word 'ratified' for normal statute law. You can only ratify a treaty.