Chemistry
What will usually happen to matter that is cooled?
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What number is also the same as proton number and the number of electrons of a neutral atom?
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What element gets its name from the Greek word "kryptos" meaning "the hidden one"?
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The Sun makes up 99.86% of the mass of what?
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Which of these objects has the most mass?
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What branch of chemistry is concerned with the chemistry of living organisms?
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What particle has a positive charge of 1 unit?
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What amino acid causes sleepiness following the consumption of a traditional Thanksgiving dinner?
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What is the chemical combination of silicon and oxygen called?
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What is the symbol used on the periodic table for the element Scandium?
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What is added to drinking water and to swimming pools to serve as a disinfectant?
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Which of the following is the symbol for Iron?
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A compound or molecule that is composed of carbon, oxygen and hydrogen best fits which science term?
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The first element on the periodic table of elements with an atomic number of 1 is?
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What is the splitting of atomic nuclei called?
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What term is used for military use of harmful biological agents?
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What are electrically charged atoms called?
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What is the symbol used on the periodic table for the element Francium?
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Which of these is a liquid?
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What is the second most common metal on Earth, and the most widely-used metal?
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