Chemistry
What symbol appears on the periodic table for the element with the atomic number 22?
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What actinide was once used to power pacemaker batteries, but has since been replaced?
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Which is the major form of sugar used by living things as fuel?
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What is the molecular geometry of the molecule sulfur hexafluoride?
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What is the diffusion of water through a cell membrane called?
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Which of these helps determine what state of matter a substance is in?
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Which of the following metals is not known to start fires in the presence of water?
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What is the unit defined as the energy needed to raise one gram of water by 1 degree Celsius?
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