Unit 11 Redox Review

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Across
  1. 2. when an atom gains or loses electrons to have a charge
  2. 3. the side of the cell where oxidation occurs
  3. 6. a cell in which a spontaneous reaction turns chemical energy into electrical energy
  4. 9. a reaction that requires additional energy in order for it to happen
  5. 10. shows which elements were oxidized or reduced as well as indicates how many electrons were lost of gained
  6. 12. the decomposition of a compound
  7. 13. this part of the reaction will always have an oxidation state of zero
  8. 14. a cell in which a battery is needed for a nonspontaneous reaction to turn electric energy into chemical energy
  9. 16. a reaction that can happen on its own
  10. 18. the losing of electrons in a reaction
  11. 20. a reaction where you need to use table J to determine which metal will replace the metal in a compound
Down
  1. 1. the only category of chemical reactions that is NOT a redox reaction
  2. 4. the charge on an element
  3. 5. location of the flow of electrons
  4. 7. the ions that don't have a change in oxidation state
  5. 8. the gaining of electrons in a reaction
  6. 11. a reaction in which there is a simultaneous transfer of electrons
  7. 15. the side of the cell where reduction occurs
  8. 17. when the total charge of the reactants equals the total charge of the products
  9. 19. allows ions to flow between half cells