Are you referring to standard notation or tabs when you mention playing right after each other? Notation along with the time signature will help you with the timing intended.... tab {or tablature} usually will not give any help in that department, they're more for use if you already are familiar with how the tune flows
And maybe what your referring to about fake chords are those in a fake book like Starsailor mentioned, where the chords presented are basic chords to a tune to help "fake" your way through it. Fake book chords along with a simple melody can produce a reasonable or passable rendition although not a "as recorded" or as a "heard on
radio" version, basically they{the chords & or notes} give the progression & or the basic melody used and not much more info...if I made any sense with that.
"Simple" power chords are two note chords, usually consisting of the "Root" and the "fifth" of the key, if you understood that then you should be good to go, if that sounded foreign then it's time to brush up on the names of the notes and their position on the fretboard along with keys and intervals