cell-types - Answers 1) Aluminum cans, copper wires 2)...

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Types of cells
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+ + + Overview “Cells” are containers of liquid with electrodes: In “electrolytic cells”, electricity is used to force chemicals to undergo a redox reaction In “galavanic cells”, electricity is produced spontaneously from a redox reaction Source or use of electricity Molten or aqueous chemicals Cell Electrode
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Assignment Read pg. 695 - 697. Answer these questions: 1) What in this room is a product of electrolysis? 2) Are ions at the anode gaining or losing electrons? What about at the cathode? 3) How is the conduction of electricity in a wire different from in an electrolytic cell. 4) Will electricity be conducted indefinitely through an electrolytic cell? Explain. 5) 697 gives the cell reaction for the electrolysis of NaCl. Write half reactions and the cell
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Unformatted text preview: Answers 1) Aluminum cans, copper wires 2) Anode = oxidation = loss of electrons (LEO) Cathode= reduction= gain of electrons (GER) 3) In wire, electricity means flow of electrons past metal atoms. In electrolysis, electricity means the movement of ions. 4) No. Only until all of the ions are used up. The electrolytic cell Electric current forces charges on electrodes + + + Activity Cu Cu Al 2 3 GER LEO Assignment (read 17.5) 1) Where in the room is there a galvanic cell? Assignment 1) Batteries (computer, walkman) are galvanic 5) Answers: PE 5 Electron flow Salt bridge Fe (+) Mg () 6) Answers: Cu and Al Electron flow Salt bridge Cu (+) Al () For more lessons, visit www.chalkbored.com...
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This note was uploaded on 04/12/2011 for the course CHEM 1010 taught by Professor Marshall during the Spring '11 term at North Texas.

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cell-types - Answers 1) Aluminum cans, copper wires 2)...

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