Most of the experiments focus on the cathode and the reactants contained within (for example) oxygen, carbon dioxide, water, etc... Top 2.
(Most of the experiments; focus; on the cathode and the reactants) (the reactants; contained; within (for example) oxygen, carbon dioxide, water, etc... Top 2)
Most of the experiments the reactants
focus contained
on the cathode and the reactants
within (for example) oxygen, carbon dioxide, water, etc... Top 2