Electrolysis

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6 Terms

1
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Electrolyte

A substance (solution or molten) that conducts electricity due to its freely moving ions.

2
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Electrolysis

Process in which electrical energy from a d.c supply decomposes electrolytes

3
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What is the half equation for the reaction at the cathode and anode?

Cathode: Na+ + e- → Na

Anode: 2Cl- → Cl2 + 2e-

4
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Which metals can you extract using electrolysis?

  • Potassium

  • sodium

  • calcium

  • magnesium

  • aluminium

5
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Anions?

Negatively charged ions that move to anode (+positive electrode)

6
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Cations?

negatively charged ions that move to the cathode (-negative electrode)