  Correlations driven by the constraints of local charge conservation have been
shown to provide insight into the chemical evolution and diffusivity of the
high-temperature matter created in ultra-relativistic heavy ion collisions.
Two-particle correlations driven by final-state interactions have allowed the
extraction of critical femtoscopic space-time information about the expansion
and dissolution of the same collisions. Whereas correlations from final-state
interactions mainly appear at small relative momenta, a few tens of MeV/$c$,
charge-balance correlations extend over a range of hundreds of MeV/$c$. In
nearly all previous analyses, this separation of scales is used to focus solely
on one class or the other. The purpose of this study is to quantitatively
understand the degree to which correlations from final-state interactions
distort the interpretation of charge-balance correlations and vice versa.
