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TOPIC 9 – OXIDATION REDUCTION REGENTS REVIEW

TOPIC 9 – OXIDATION REDUCTION REGENTS REVIEW. DO NOW: Questions in M.C. packet. TOPIC 9 – Regents Review. An oxidation-reduction reaction involves the transfer of electrons Reduction is the gain of electrons and decrease of oxidation number

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TOPIC 9 – OXIDATION REDUCTION REGENTS REVIEW

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  1. TOPIC 9 – OXIDATION REDUCTIONREGENTS REVIEW DO NOW: Questions in M.C. packet

  2. TOPIC 9 – Regents Review • An oxidation-reduction reaction involves the transfer of electrons • Reductionis the gain of electrons and decrease of oxidation number • A half reaction can be written to represent reduction • Oxidation is the loss of electrons and increase of oxidation number • A half reaction can be written to represent oxidation O L R G

  3. TOPIC 9 – Regents Review • In redox the number of electron lost is equal to the number of electrons gained • Oxidation numbers/states can be assigned to atoms and ions. Charges in oxidation numbers indicate that a redox reaction has occurred • Double replacement reactionsare not redox reactions • A reaction in which an element is alone on one side of a reaction, and part of a compound on the other side is always a redox reaction

  4. TOPIC 9 – Regents Review • An electrochemical cell can be either voltaic or electrolytic_ • In an electrochemical cell oxidation occurs at the anode and reduction at the cathode RED CAT sat on AN OX

  5. TOPIC 9 – Regents Review • A voltaic cell spontaneously converts chemical energy to electrical energy • An electrolytic cell requires energy to produce a chemical change this is called electrolysis

  6. TOPIC 9 – OXIDATION REDUCTIONREGENTS REVIEW SUMMARY – ANSWER QUESTIONS IN PACKET

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