Chemistry
What symbol appears on the periodic table for Thorium which has the atomic number 90?
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What symbol appears on the periodic table for the element with the atomic number 88?
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In an ethyne molecule, what is the hybridization of each of the carbons?
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Which mineral is highly valued as an industrial flux?
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What is a compound or mixture of chemical compounds that is used to maintain a steady pH?
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What is the approximate heat of vaporization of water at its boiling point?
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What alkali metal is used in batteries and certain medicines?
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