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Flat Earthers, what Proof do you have that the pictures of earth are fake? Calculate the number of H atoms in 0.180 mole C6H14O.? Rolls of foil are 304 mm wide and 0.012 mm thick. density of foil is 2.7 g/cm3
What maximum length of foil can be made from 1.21 kg of foil? There are 5280 feet in a mile. What fraction of a mile is represented by 220 feet? How many years is there between 21 and 35?