Appendix

Transparency Masters

1. Voltaic Cell: Zinc/Hydrogen Electrodes

2. Voltaic Cell: Zinc/Copper Electrodes

3. Electrolysis of Molten Sodium Chloride

4. Electrolysis of Water

5. Electrochemistry and Dental Fillings

6. Word Search

7. Electrochemistry Crossword Puzzle

Humor

Words about the concepts in this module can be obtained from the clues given. Find these words in the block of letters:

1. Driving force in a voltaic cell. (2 words)

2. Either of two parts of an oxidation-reduction reaction. (2 words)

3. Electrical quantity measured in amperes.

4. Unit of electrical potential.

5. Electrode at which reduction occurs.

6. Negative ion.

7. Type of cell where chemical energy is converted to electrical energy spontaneously by a redox reaction

8. Process by which metals are oxidized in the atmosphere

9. State in which NaCl must be in order to conduct electricity

10. Device containing an electrolyte that connects the two compartments of a voltaic cell. (2 words)

Across

5. Driving force in a voltaic cell (2 words).

6. Fundamental quantity that must be measured in order to determine therate of electron flow.

7. Substance added to fuel cells as fuel.

9. Either of two parts of an oxidation-reduction reaction (2 words).

13. Method of separating mixtures that contain charged molecular species.

14. Process by which metals are oxidized in the atmosphere.

15. Form of energy generated when electriccurrent flows.

17. Word with ring denoting a support for laboratory devices.

19. Type of cell where chemical energy is converted to electrical energy spontan-eously by a redox reaction.

20. Number of moles of electrons transferred when a mole of iron(II) is oxidized.

21. General term for a joule or coulomb, e.g.

22. Electrical quantity measured in amperes.

Down

1. Laboratory holder for a test-tube.

2. Unit of electrical potential.

3. Element used in a Daniell Cell.

4. State in which pure NaCl must be in order to conduct

electricity.

5. Electrode at which reduction occurs.

8. Device containing an electrolyte that connects the two

compartments of a voltaic cell (2 words).

10. What an ion does when a voltaic cell discharges.

11. Center of a transformer or an apple.

12. Process whereby electrons are lost.

14. Positive ion.

16. Negative ion.

18. Word used to precede voltage to denote a condition

where greater potential than calculated is needed to make

a reaction proceed.

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