Which Chords In Which Keys?

[jeremy1]

I would like to know how to figure out which chords I can play over which keys. ie. The C major scale has notes c,d,e,f,g,a,b. Does this mean I can play each of these chords? Or does this mean I can only play these notes within chords? Please help.

Jeremy

[smfulla]

scale degrees give you the chords which you can use that scale over
I IIm IIIm IV V VIm VIIdim