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A scientist has 2.5 grams of radium-226. How many grams of the sample will decay in 8000 years?
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Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).
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Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
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What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2
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Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?
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A scientist has 2.5 grams of radium-226. How many grams of the sample will decay in 8000 years?...
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