#reactions notes

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Redox Reactions

-- also called oxidation-reduction reactions

-- responsible for      -- rusting of iron      -- bleaching of hair      -- producing electricity in batteries

-- usually involve the reaction of a substance with oxygen

-- redox reactions occur when      -- a substance reacts with oxygen      -- a metal reacts with a nonmetal      -- one substance transfers electrons to another substance

-- examples      -- 2H2 + O2 --> 2H2O      -- 4Fe + 3O2 --> 2Fe2O3      -- 2Na + Cl2 --> 2NaCl

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