What reaction (oxidation or reduction) occurs at the cathode of a voltaic cell? How do you balance redox reactions using the oxidation number method? Which species is the reducing agent in a redox reaction? When balancing a redox reaction you are balancing?
Synthesis and characterization of SiO2–CrO3, SiO2–MoO3, and SiO2–WO3 mixed oxides produced using the non-hydrolytic sol–gel process Tromp M, Moulin J, Reid G, Evans J (2007) Cr K-Edge XANES spectroscopy: ligand and oxidation state dependence—what is oxidation state? AIP Conf Pro... ...