It's not protons or electrons, but balancing redox reaction equations in acidic conditions often involves adding multiple moles of this molecule to either side.
Mixing DMAD and quadricyclane as suspensions in this substance results in a higher yield for a cycloaddition reaction than dissolving them in toluene. Because this substance has a high cohesive energy density and has a higher internal pressure than the reagents of the Diels-Alder reaction, the reaction occurs faster in the presence of this substance. It's not protons or electrons, but balancing redox reaction equations in acidic conditions often involves adding multiple moles of this molecule to either side. Arrhenius acids and bases are defined by their interactions with this substance, which is formed when hydrogen combusts. For 10 points, name this universal solvent with the formula H2O.
Mixing DMAD and quadricyclane as suspensions in this substance results in a higher yield for a cycloaddition reaction than dissolving them in toluene.
water [or H2O until it is read; or dihydrogen monoxide; or DHMO]