ST.4 Electrochemical Cells N5 (CIS) Flashcards
1
Q
What are electrolytes?
A
Electrically conducting solutions containing ions are known as electrolytes
2
Q
How can a simple cell be made?
A
A simple cell can be made by placing two metals in an electrolyte
3
Q
How can another type of cell be made?
A
Another type of cell can be made using two half-cells (metals in solutions of their own ions);
4
Q
What can an ‘ion bridge’ be used for?
A
An ‘ion bridge’ (salt bridge) can be used to link the half-cells
5
Q
How does an ion bridge work?
A
Ions can move across the bridge to complete an electrical circuit
6
Q
How do the circuits work?
A
Electrons flow in the external circuit from the species higher in the electrochemical series to the one lower in the electrochemical series
