For the given reactions, classify the reactants as the reducing agent, oxidizing agent, or neither.
F2 + H2 → 2 HF
2 Mg + O2 → 2 MgO
A chemical reaction in which the atoms of the reactants undergo a change in the oxidation state is called a redox reaction. Such reactions involve both oxidation (increase in oxidation state) and reduction (decrease in oxidation state) reactions simultaneously. A reducing agent is the one that reduces another species and at the same time itself gets oxidized. An oxidizing agent is the one that oxidizes another species and at the same time itself gets reduced. So a species whose oxidation state increases is called a reducing agent whereas a species whose oxidation state decreases is called an oxidizing agent.
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