Chemistry
What is the half-life of Rubidium-Strontium 87?
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What is often used in advertising signs and produces a bright reddish-orange light?
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What sort of change happens to a head of lettuce when you cut it in half?
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What symbol appears on the periodic table for the element with the atomic number 10?
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What is used to remove oxygen from cathode ray tubes and vacuum tubes?
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What is a chemical process by which the hair is permanently straightened?
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