Chemistry
What is the stinky gas associated with swamps and anaerobic decomposition?
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What transition metals are the only elements known to produce a magnetic field?
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What is the name for naturally-occurring alloy of gold and silver with a small amount of other metals?
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Which state of matter has molecules packed together tightly?
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What is the symbol used on the periodic table for the element Protactinium?
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Beryllium, magnesium, calcium, strontium, barium, and radium consist what group of elements?
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