Chemistry
What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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Phosphorus is the 13th element to be discovered, where did it come from?
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Who performed the infamous gold-foil experiment that first detected the existence of the atomic nucleus?
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What halogen is the most reactive and combines with most elements from around the periodic table?
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What substance is industrially prepared by the Haber Process?
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Acetylsalicylic acid is the chemical name for which?
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The first element on the periodic table of elements with an atomic number of 1 is?
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