Chemistry
Clocks made out of what alkali metal are considered the most accurate of all clocks?
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What makes matter expand when it's heated and contract when it's cooled?
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What is the symbol used on the periodic table for the element Terbium?
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What element was discovered as a component of the debris of the first hydrogen bomb explosion?
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What is a chemical process by which the hair is permanently straightened?
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What are the products of propanoic acid and ethanol when the two are combined with warm sulphuric acid?
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