Electrolysis Flashcards
1
Q
What is electric current?
A
- Electric current is the flow of charged particles
- This usually refers to electrons, but it could also mean the flow of ions
2
Q
Why do most covalent compounds not conduct electricity?
A
- Most covalent compounds do not conduct electricity as they have no freely moving charged particles to carry the current.
- They act as insulators.
3
Q
When can ionic compounds conduct electricity?
A
- In the molten state or in solution as they have ions that can move and carry charge.
- They cannot conduct electricity in the solid state as the ions are in fixed positions within the lattice and are unable to move
4
Q
Where do electrons move in electrolysis?
A
During electrolysis the electrons move from the power supply towards the cathode
5
Q
Where do positive ions move in electrolysis?
A
Positive ions within the electrolyte migrate towards the negatively charged electrode which is the cathode.
6
Q
Where do negative ions move in electrolysis?
A
Negative ions within the electrolyte migrate towards the positively charged electrode which is the anode
