Chemistry
What is the chemical symbol for Helium?
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Clocks made out of what alkali metal are considered the most accurate of all clocks?
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Gold, silver, lead, and copper exhibit the properties of which of the following crystal systems?
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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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What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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What is the most abundant halogen found in the Earth's crust?
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What is thermal energy that moves from warmer objects to cooler ones called?
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What is the name of a hydrocarbon with two carbons sp^2 hybridized?
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Which three gas laws constitute the combined gas law (PV/T=pv/t)?
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