Chemistry
What kind of cell has a negative EMF and a positive Gibbs free energy?
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Berkelium on the periodic table is noted by which symbol?
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Orange street lighting is orange because of the presence of what element in the lamp?
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What is the name of a hydrocarbon with two carbons sp^2 hybridized?
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What post-transition metal is used to make blue and violet light-emitting diodes (LEDs) and diode lasers?
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What circuit is put on a piece of chemically bathed plastic?
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Clocks made out of what alkali metal are considered the most accurate of all clocks?
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The red color of rubies is caused mainly by the presence of what element?
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