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Chemistry
The red color of rubies is caused mainly by the presence of what element?
Chemistry
The red color of rubies is caused mainly by the presence of what element?
Strontium
Chromium
Cadmium
Iron
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What orbital is described by the quantum numbers: n=3 and l=2?
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Mendelevium on the periodic table is noted by which symbol?
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Europium on the periodic table is noted by which symbol?
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Which element gained notoriety from poisoning the waters around Japan?
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What actinide was once used to power pacemaker batteries, but has since been replaced?
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What's the chemical symbol for water?
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What is table salt's chemical name?
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Which of these is the primary component of natural gas?
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