Chemistry: Quiz: Electrochemical Cells

Quiz: Electrochemical Cells

1. Another name for a spontaneous electrochemical cell is

a. salt bridge

b. volt meter

c. voltaic cell

2. A voltaic cell uses a chemical reaction to produce

a. pressure

b. change in temperature

c. electricity

3. The ions in a solution which conduct electricity are known as

a. colloids

b. electrolytes

c. electrodes

4. Reduction occurs at the

a. anion

b. cathode

c. salt bridge

5. In a voltaic cell, oxidation occurs at the __________ and is the __________ electrode.

a. cathode, positive

b. anode, positive

c. anode, negative

6. The positive electrode in a voltaic cell is known as a(n)

a. anode

b. cathode

c. antinode

7. Compounds that have a high degree of ionization in solution are known as

a. weak electrolytes

b. nonconductors

c. strong electrolytes

Use the following balanced ionic equation to answer questions 8–10.

8. Which species is oxidized?

b. Fe

c. Mn²⁺

9. Which species is the oxidizing agent?

b. Fe

c. Mn⁺²

10. How many electrons are transferred in the balanced redox reaction?

a. 2

b. 5

c. 10