Chemistry
Which of these is a heavy gas used in specialized electric lamps?
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Sodium on the periodic table is noted by which symbol?
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What symbol appears on the periodic table for the element with the atomic number 6?
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In a lead storage battery, what strong acid is consumed in a reaction which produces the voltage?
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Compounds of what element are used in soaps, fertilizers, explosives, and matches?
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The spontaneity of a reaction is determined by which of these?
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What contain most of the calcium ion in the human body?
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