I've noticed that there are only acoustic versions of this song on UG so I've 
worked out the original.

Here are the tabs for the chords I used. I'm not sure on the names being correct 
but for the sake of this tab I'll use these names.
D 000232
B/C 002013
C 032013
G 320003
A 003330

Intro: D B/C C G

Verse:
DMaybe (xx0232@1)it's the chemistry,
B/CThe (134442@1)sparks that fly from you to me,
CI (x32010@1)touch your skin I feel alive,
GBeen (320003@1)searching for you every night.
DWhere (xx0232@1)am I supposed to go,
B/CI'm (134442@1)hoping that you won't say no,
C (x32010@1)                       GWe've (320003@1)got all the time in the world.

Chorus:
DIt (xx0232@1)must be the chemistry,
B/CTonight, (134442@1)CI (x32010@1)hope that you know I won't let you go,
GThis (320003@1)time
DIt (xx0232@1)must be the chemistry
B/CBetween (134442@1)you and I
CI (x32010@1)hope that you know I won't let you go
GThis (320003@1)time

Verse 2
DUnderneath (xx0232@1)the starry sky,
B/CYou (134442@1)can bring me back to life,
CI (x32010@1)touch your skin I feel alive,
GBeen (320003@1)searching for you every night.
DTake (xx0232@1)me somewhere I don't know,
B/CWatch (134442@1)all the people down below,
C (x32010@1)                       GWe've (320003@1)got all the time in the world.

Chorus:
DIt (xx0232@1)must be the chemistry,
B/CTonight, (134442@1)CI (x32010@1)hope that you know I won't let you go,
GThis (320003@1)time
DIt (xx0232@1)must be the chemistry
B/CBetween (134442@1)you and I
CI (x32010@1)hope that you know I won't let you go
GThis (320003@1)time

Solo: B/C D (x2)
A (x02220@1)Chorus:
DIt (xx0232@1)must be the chemistry,
B/CTonight, (134442@1)CI (x32010@1)hope that you know I won't let you go,
GThis (320003@1)time
DIt (xx0232@1)must be the chemistry
B/CBetween (134442@1)you and I
CI (x32010@1)hope that you know I won't let you go
GThis (320003@1)time