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Oxidation-reduction reaction - Page 263

A type of chemical reaction that involves a transfer of electrons between two species - Updated 2022

Definition

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves a transfer of electrons between two species.

An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron. Redox reactions are common and vital to some of the basic functions of life, including photosynthesis, respiration, combustion, and corrosion or rusting.

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Phản ứng cho H2O2 (oxi già) tác dụng vói MnO2 (Mangan oxit) tạo thành O2 (oxi)

Phương trình để tạo ra chất H2O2 (oxi già) (hydrogen peroxide)

H2SO4 + BaO2 → H2O2 + BaSO4 10H2O + 5(NH4)2S2O8 → 5H2O2 + 10NH4HSO4 H2SO4 + Na2O2 → H2O2 + Na2SO4

Phương trình để tạo ra chất MnO2 (Mangan oxit) (manganese dioxide)

2KMnO4 → MnO2 + O2 + K2MnO4 3C2H4 + 4H2O + 2KMnO4 → 2KOH + 2MnO2 + 3C2H4(OH)2 3C2H4 + 4H2O + 2KMnO4 → 2KOH + 2MnO2 + 3C2H4(OH)2

Phương trình để tạo ra chất O2 (oxi) (oxygen)

2AgNO3 → 2Ag + 2NO2 + O2 2KNO3 → 2KNO2 + O2 2Cu(NO3)2 → 2CuO + 4NO2 + O2

Phương trình để tạo ra chất H2Mn (Mangan dihydride) ()

H2O2 + MnO2 → 2O2 + H2Mn

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