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