Chord tone and an arpeggio - as both are made from the chord's notes they are a lot alike.
From the top, ready 1 and 2 and 3 .......
http://www.smithfowler.org/music/Chord_Formulas.htm
Notice a major chord is made of the 1-3-5 notes of the chords tonic scale. A minor chord is made from the 1-b3-5 notes. Every minor chord has a flatted 3rd and every major chord has a natural 3rd.
Fake chord tells you to play a C chord - you have the option of all roots, or root - 5. Not going to get into that. Chord tones for the following:
C = R-3-5-3 ascending or R-7-6-5 descending.
Cm = R-b3-5-b3 ascending or R-7-6-5 descending. OK you get the idea of ascending or descending. Let's move on.
C7 = R-3-5-b7
Cm7 = R-b3-5-b7
Cmaj7 = R-3-5-7
Cdim = R-b3-b5 and bb7 if you like.
C/G With any slash chord we play only the slash so grab a R(G)-3-5-3
Two chords in one measure - if 4/4 time you only have room for a R-5 for both chords, i.e. you only have 4 beats for this measure so you can only play 4 notes.
Cmaj7add9 Up to you but I never go beyond 7ths so I'd ignore the add9 and play just the Cmaj7.
Pause for questions.......