Chemistry
What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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What are vast amounts of oil that have become trapped in one place called?
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What element is used as a filler gas in fluorescent and incandescent light bulbs?
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An atom of which of the following elements has the smallest volume?
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What happens to water when it gets close to freezing?
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What is an atom that has more electrons than normal referred to as?
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What two common ingredients cause an observable chemical reaction when mixed?
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