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Radium has a half-life of 1500 years. How long will it take for 250kg of Radium to decay down to less than 10kg
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Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h
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Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 βc to 0 βc. what will happen during cooling?
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Radium has a half-life of 1500 years. How long will it take for 250kg of Radium to decay down to les...
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