Chemistry
Because they are so reactive with air and water, what group of elements are generally stored in oil?
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What compounds that are soluble in water are classed as bases?
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Praseodymium 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 22?
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Which of the following analytical techniques gives an "ion peak"?
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Actinium on the periodic table is noted by which symbol?
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What major chemical other than chlorine is used to purify water of microorganisms?
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The spontaneity of a reaction is determined by which of these?
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