# General Oxidant - Reductant Battery

In general, is it true that if I connect an aqueous oxidant to an aqueous reductant via a wire then a current flows along the wire? In particular, does current flow in the following scenario?

Imagine putting one end of a wire in hydrogen peroxide (a common oxidizer) and the other end inside water containing formic acid or pure carbon (reductants).

I understand that standard Energizer alkaline batteries are composed of separated $$\ce{Zn}$$ and $$\ce{MnO2}$$. Connecting the terminals allows electrons to flow from the $$\ce{Zn}$$ to the $$\ce{MnO2}$$, oxidizing/reducing them to $$\ce{ZnO}$$ and $$\ce{MnOOH}$$.