Chemistry
Which is not a component of black powder?
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What is the second most common metal on Earth, and the most widely-used metal?
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What is the chemical combination of silicon and oxygen called?
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What is a method to indicate reactants and products of a chemical reaction using chemical formulas?
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What is force that resists the separation of two bodies in contact called?
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Which is a chemical often injected into lips for plastic surgery?
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What happens to water when it gets close to freezing?
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Which of the following items is most likely to be fortified with vitamins?
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