Gaseous Fâ reacts with water to form HF and Oâ. In NaOH solution, Fâ forms Fâ», water, and oxygen difluoride (OFâ), a highly toxic gas and powerful oxidizing agent. The OFâ reacts with excess OHâ» forming Oâ, water, and Fâ».(a) For each reaction, write a balanced equation, give the oxidation state of O in all compounds, and identify the oxidizing and reducing agents.