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Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. Which is the limiting reagent when 28 g of MnO2 are mixed with 42 g of HCl
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11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
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An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it
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Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *
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If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied
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Chlorine gas can be made from the reaction of manganese dioxide with hydrochloric acid. Which is the...
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