Identify the species that was reduced in the titration reaction shown below. Justify your answer in terms of oxidation numbers.
6H+(aq)+2MnO4−(aq)+5H2C2O4(aq)→10CO 2(g)+8H2O(l)+2Mn2+(aq)

All chemical reactions use reactants in a specific proportion or stoichiometry to form products. the reactant regulates the amount of products produced. a) excess b) limiting c) proportional d) stoichiometric