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24 Cards in this Set
- Front
- Back
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Electrolysis |
Breaking down a substance using electricity from a dc source. |
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Electrode |
Carbon rod which passes electricity into the chemical. |
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Electrolyte |
An ionic substance which is molten or dissolved in water. |
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Cation |
Positive ion (metals) |
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Anion |
Negative ion (non-metals) |
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Cathode |
Negative electrode.Reduction occurs here. |
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Anode |
Positive electrode.Oxidation occurs here. |
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Losing electrons |
Oxidation |
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Gaining electrons |
Reduction |
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When oxidation and reduction occur at the same time |
Redox |
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Test for chlorine |
Turns damp blue litmus paper red then bleaches it white. |
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Uses of chlorine |
Manufacture of hydrochloric acid Manufacture of plastics Antiseptic |
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Uses of hydrogen |
Possible non-polluting fuel Manufacture hydrochloric acid Ammonia production |
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Uses of sodium hydroxide |
Manufacture of paper Removes pollutants from water Unclogging drains |
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Uses of sodium |
Used in street lamps Used as a coolant in some nuclear reactors |
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Hydrogen |
Positive |
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Hydroxide |
Negative Alkaline |
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Cathode |
Here, if the metal is less reactive than hydrogen, the metal is produced. If the metal is more reactive than the hydrogen, hydrogen is produced. |
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Anode |
Here, if there's a higher concentration of non-metal than hydroxide, then the non-metal is produced. If there's a higher concentration of hydroxide than non-metal, oxygen is produced. |
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Hydroxide |
Decomposes into oxygen and water |
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Calcium chloride |
Added to the electrolysis of sodium chloride to reduce the melting point. |
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Cathode |
The one that's coated |
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Which metals are less reactive than hydrogen? |
Copper Silver Gold |
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Which will be produced at the anode, OH or a halogen? |
A halogen |
