Chemistry
What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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How many elements with atomic number below 100 have their symbols starting with an upper case T?
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What halogen element exists as a liquid at room temperature?
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Oxygen can also be created by humans by using what process, where electricity passes through water?
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What is the primary hormone that has a role in stress adaptation?
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What is a combination of substances that still remain intact?
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