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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
Iron
Cadmium
Chromium
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Whose laws are used to prove the Ideal Gas law?
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What element was named after the planet Uranus?
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Unnilseptium on the periodic table is noted by which symbol?
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Which of these is an element?
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What heat is released during a change of state?
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The Statue of Liberty is made of an iron frame with a sheet of what other metal hung over it?
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What orbits the nucleus of an atom?
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What process changes a rock's chemical composition to break it down?
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