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Comprehensive Guide to Balancing Redox Reactions and Assigning Oxidation States

This unit provides an in-depth understanding of balancing redox equations by assigning oxidation states to identify oxidation and reduction processes. Gain skills in writing and balancing half-reactions, ensuring all atoms except O and H are balanced first. Learn how to balance oxygen using H2O and hydrogen with H+, followed by charge balance using electrons. This guide includes practical examples, such as the redox reactions of Cr2O3 with C and Zn with MnO4-. Master the art of balancing redox reactions to enhance your understanding of chemical processes.

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Comprehensive Guide to Balancing Redox Reactions and Assigning Oxidation States

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  1. Unit 8 Balancing Redox Equations

  2. Balancing Redox Reactions Assign oxidation states to determine what is being oxidized and reduced Write the reduction and oxidation half reactions. Reduction Oxidation Balance all atoms except O and H Balance all atoms except O and H Combine and simplify Balance oxygen with H2O Balance oxygen with H2O Balance hydrogen with H+ Balance hydrogen with H+ Balance charge with e- Balance charge with e- Make sure that number of e- in both reactions are equal

  3. Balancing Redox Reactions Cr2O3 + C  Cr + CO2

  4. Balancing Redox Reactions Zn + MnO4- Zn(OH)2 + MnO2

  5. Balancing Redox Reactions O2 + V2+ VO2+ O2 + VO2+  VO2+ H2O2 + Fe2+  Fe3+ H5IO6 + I- I2

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