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Topic 11: Redox and electrochemistry

19. Electrochemical cells: Describing diagrams or equations

1. Given the cell diagram below

This cell is best described as
1) Voltaic, that will absorb energy 3) An electrolytic, that will absorb energy
2) Voltaic, that will produce energy 4) An electrolytic, that will produce energy
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2. Given the cell diagram below.

The reaction occurring in this cell is described as
1) Non-spontaneous, taking place in a voltaic cell 3) Non-Spontaneous, taking place in an electrolytic cell
2) Spontaneous, taking place in a voltaic cell 4) Spontaneous, taking place in an electrolytic cell

3. Given the reaction; 2+ 2+

Zn + Cu --------- Zn + Cu
In which type of cell would this reaction most likely occur?
1) An electrolytic cell, because it is endothermic 3) A voltaic cell, because it is endothermic
2) An electrolytic cell, because it is exothermic 4) A voltaic cell, because it is exothermic

4. Consider the reaction below:

NaCl(aq) + electricity -------- Na(s) + Cl2(g)
This reaction would most likely occurs in
1) A voltaic cell, because it absorbs energy 3) An electrolytic cell, because it absorbs energy
2) A voltaic cell, because it produces energy 4) An electrolytic cell, because it produces energy
5. Given the reaction
2H2O(l) + electricity -------- 2H2(g) + O2(g)

This reaction can be best describe as
1) Redox, and non-spontaneous 3) Non-redox and spontaneous
2) Redox, and spontaneous 4) Non-redox and nonspontaneous

6. Given the reaction:
Mg(s) + FeSO4(aq) ------- Fe(s) + MgSO4(aq)

The reaction would most likely occur in
1) A voltaic cell, and will produce energy 3) An electrolytic cell, and will produce energy
2) A voltaic cell, and will absorb energy 4) An electrolytic cell, and will absorb energy
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