Chemistry
What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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What is the final product of the Uranium 238 decay chain?
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What is the sixth most abundant element on Earth, as well as the most abundant alkali metal?
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What precious metal is most commonly used in catalytic converters for cars?
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Actinium on the periodic table is noted by which symbol?
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Which element is commonly used in catalytic converters due to its properties as a reducing agent?
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What type of fuel do semi-trailer trucks generally use?
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