Chemistry
What alloy is made of copper and zinc and used for decoration for its bright gold-like appearance?
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Heavy water contains what isotopic form of hydrogen?
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What radioactive metallic element, found in all uranium ores, has an atomic number of 89?
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Gold, silver, lead, and copper exhibit the properties of which of the following crystal systems?
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In 2013, 140 countries signed the Minamata Treaty to protect people from what chemical element?
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What element is the most ductile of the pure metals, but is less malleable than gold?
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Which has no part in the scientific method of experimentation?
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How many pounds of carbon dioxide are produced when a car burns one gallon of gas?
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