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What is an atomic mass unit? why is it necessary to introduce such a unit?
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8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
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What mass of glucose is produced when 54g of water react with carbon dioxide
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What is an atomic mass unit? why is it necessary to introduce such a unit?...
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