Zinc, Zn, is more easily oxidized than copper, Cu. Two strips of these metals are placed within separate salt solutions and then connected by a wire. Does an electric current pass through this wire?
A. No, an electric current does not pass through the wire because this would result in a prohibitive buildup of charge.
B. Yes, as the zinc is oxidized in the salt solution, its released electrons pass through the wire producing an electric current.
C. Yes and No. The passage of an electric current depends on whether the salt solutions are sufficiently concentrated to cause the oxidation of the zinc metal. The answer is yes only if the salt solution concentration is greater than 1M.
D. There is insufficient information given to know. The passage of electric current depends on three things: the size of the plates, the concentration of the salt solution, and the gauge of the wire.
Answer: A
You might also like to view...
What maintains a forced wave?
a. Wavelength b. Wind c. Disturbing force d. Restoring force
Describe the different methods of heat transfer
What will be an ideal response?
What is an excellent example of an exotic stream?
a. Danube River b. Rhine Rive c. Thames River d. Nile River
The theory of plate tectonics can be used to explain all of the following EXCEPT:
A. the presence of magnetic anomalies on the ocean floor. B. the presence of glacial deposits in what are now tropical areas. C. the distribution of earthquakes and volcanoes. D. the origin of mountains. E. the origin of the Earth's core.