Playing chords with two hands has two reasons: it can be necessary for when the chord include many notes and it can create a richer sound for other chords that also can be played with one hand.
Major and minor triads
A two-hand version of C major can be played with the left hand playing C-G and with the right playing E-G-C on the next octave.
A two-hand version of C minor can be played at a similar way with the left hand playing C-G and with the right playing Eb-G-C.
Open voicings such as these will in general sound better when the notes in the bass isn't to near each other.
Major and minor seventh chords
The G7 chord can be played with two hands with left hand playing G-D and the right hand playing F-G-B on the next octave.
The Gmaj7 chord can be played with two hands with left hand playing G-D and the right hand playing F#-G-B on the next octave.
The Gm7 chord can be played with two hands with left hand playing G-D and the right hand playing F-G-Bb on the next octave.
Extended chord mustn’t be played with two hand because there are possible to omit notes and use inversions. Nevertheless, playing these chords with two hands will often fulfil the potential of colorful sounds.
This is one option to play Dominant 9th chords using both hands, in this case with all fives notes and including some inversions.
This is one option to play Dominant 13th chords using both hands, in this case with the fifth, ninth and eleventh omitted and doubling the tonic.
There are many possibilities of chord forming with ten fingers available. As said before, try to have some distance from the first bass note and any if many notes are needed near each other they often sounds best when in the middle part of the chord construction.
See also Voicings ›