Quiz: Electron Transfer

1. The species which contains the element that is reduced is the
a. reducing agent
b. oxidizing agent
c. spectator ion
2. The element undergoing oxidation
a. gains electrons
b. loses electrons
c. maintains a constant number of electrons
3. In general, the elements in the upper right-hand corner of the periodic are
a. strong reducing agents
b. not involved in redox reactions
c. strong oxidizing agents
4. Ions that do not change oxidation numbers during a chemical reaction are called
a. spectator ions
b. oxidizing agents
c. reducing agents

Use the following chemical reaction to answer questions 5–8:

equation

5. Which species is oxidized?
a. hydrogen
b. chlorine
c. hydrochloric acid
6. Which species is reduced?
a. hydrogen
b. chlorine
c. hydrochloric acid
7. Which species is the reducing agent?
a. hydrogen
b. chlorine
c. hydrochloric acid
8. How many electrons are being transferred?
a. 0
b. 1
c. 2

Use the following chemical reaction to answer questions 9–13:

equation

9. Which species is the oxidizing agent?
a. Cu
b. Cu(NO3)2
c. AgNO3
10. Which element is being oxidized?
a. Cu0
b. Cu2+
c. Ag1+
11. Which species is the spectator ion?
a. Cu
b. Ag+
c. equation
12. Which element is being reduced?
a. Cu0
b. Ag+
c. Ag0
13. How many electrons are being transferred?
a. 0
b. 1
c. 2

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