Electrochem

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  1. 3. the cell potential when the salt concentrations of all salt solutions are 1.0mol/L under standard conditions of temperature and pressure
  2. 4. a circuit outside the reactions vessel in which redox reactions are occurring
  3. 7. the process of removing impuritiesOxidation number a number equal to the charge that an atom would have if no electrons were shared but instead were possessed by the atom with the greatest electronegativity
  4. 13. a substance that when dissolved in water, conducts an electric current
  5. 17. a reactant that donates electrons thus reduces another reactantHalf-reaction an equation that describes changes in only the compound that is oxidized or the compound that is reduced Disproportionation reaction a reaction in which some atoms of an element are oxidized and other atoms of the same element are reduced
  6. 19. abbreviated form of oxidation- reduction reactionIonic equation an equation in which soluble ionic compounds are written as individual ions
  7. 20. Ions that are present in a solution but do not change during a reaction
  8. 21. the potential difference between a given half-cell and a hydrogen half-cell, written as a reduction reaction, when all solutes are present at 1.0 mol/L concentrations at SATP and hydrogen gas is at 1.0 atm of pressure
  9. 22. a shorthand method of representing galvanic cells
  10. 23. a device that uses redox reactions to transform chemical potential energy into electrical energy
  11. 25. The study of processes involved in converting chemical energy into electrical energy and converting electrical energy into chemical energy
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  1. 1. The loss of electrons
  2. 2. an electrical connection between half cells that contain an electrolyte solution allowing a current to flow but preventing contact between the oxidizing agent and the reducing agent
  3. 5. a conductor that consists of neither the reactant nor the product but provides a surface on which redox reaction can occur.
  4. 6. an ionic equation in which the spectator ions are omitted Oxidizing agent a reactant that accepts electrons and thus oxidizes another reactant
  5. 8. a directional motion of electric charges
  6. 9. a technique that uses direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction
  7. 10. a common term for electrical potential differenceCell potential the electrical potential difference between the two electrodes of a cell
  8. 11. difference between two points, is the amount of energy that a unit charge would gain by moving from one point to the other
  9. 12. The gain of electrons
  10. 14. any device in which electrical energy is converted to chemical energy, or vice versa
  11. 15. the electrode at which oxidation occurs
  12. 16. a conductor that carries electric current into and out of electrochemical cells
  13. 18. the melting of ore and reduction of metal ions to atoms, then separating the metal from non-metal substances
  14. 24. the electrode at which reduction occurs