  Heavy-ion collisions at the LHC provide the conditions to investigate regions
of quark-gluon plasma that reach higher temperatures and that persist for
longer periods of time compared to collisions at the Relativistic Heavy Ion
Collider. This extended duration allows correlations from charge conservation
to better separate during the quark-gluon plasma phase, and thus be better
distinguished from correlations that develop during the hadron phase or during
hadronization. In this study charge balance functions binned by relative
rapidity and azimuthal angle and indexed by species are considered. A detailed
theoretical model that evolves charge correlations throughout the entirety of
an event is compared to preliminary results from the ALICE Collaboration. The
comparison with experiment provides insight into the evolution of the chemistry
and diffusivity during the collision. A ratio of balance functions is proposed
to better isolate the effects of diffusion and thus better constrain the
diffusivity.
