1. Which of the following metals oxidized by calcium ions?
A- potassium
B- zinc
C- iron
D- lead
2. The first electrochemical cell was invented by _____.
A- Michael Faraday
B- Alessandro Volta
C- James Maxwell
D- Benjamin
3. Why cant a lead storage battery be charged indefinitely?
A- A direct current must pass through the cells
B- The electrodes lose lead sulfate
C- It is difficult to reverse the direction of current flow
D- The electrolyte is too expensive
4. Which electrode (anode or cathode) is designated as positive in an electrolytic cell?
A- anode
B- cathode
C- both
D- neither
5. What is the direction of electron flow in an electrolytic cell?
A- from cathode to anode
B- from anode to cathode
C- in either direction
D- There is no flow
6. What electrolyte can be used to electrolyze water?
A-
