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USA Physics and Chemistry Contests
National Chemistry Olympiad
2009 National Chemistry Olympiad
42
42
Part of
2009 National Chemistry Olympiad
Problems
(1)
2009 USNCO Problem 42
Source:
2/18/2013
The deposition of
1.0
1.0
1.0
g of which element from its molten chloride requires the shortest time at a currently of 1 A?
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Al
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{ <span class='latex-bold'>(A)</span>\ \text{Na} \qquad<span class='latex-bold'>(B)</span>\ \text{Mg} \qquad<span class='latex-bold'>(C)</span>\ \text{Al} \qquad<span class='latex-bold'>(D</span>}\ \text{Ba} \qquad
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