Chemistry
What contain most of the calcium ion in the human body?
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What is the most common chemical element found in the Earth's atmosphere?
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What transition metal's symbol comes from the Latin word "hydrargyrum" meaning "liquid silver"?
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What element, used in some types of paint, created a health risk to children who ate paint chips?
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Triphenylphosphine can be used to prepare which of the following?
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On which scale is the boiling point of water 80 degrees?
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What alloy is made of copper and zinc and used for decoration for its bright gold-like appearance?
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What two common ingredients cause an observable chemical reaction when mixed?
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