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Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
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If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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How many joules of heat are required to raise thetemperature of 750 g of water from 11.0 °c to 19.0 °c?
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What has more particles: a mole of hydrogen or a mole of uranium?...
Mathematics, 16.04.2021 01:00
Mathematics, 16.04.2021 01:00