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if ir does not give you the exact formula of a chemical compound what useful information does it providein the
a photon with a wavelength of 415 nm strikes a metal surface ejecting an electron with a velocity of 90 x 105 msec what
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gaseous butanenbspch3 ch22 ch3 will react with gaseous oxygennbspo2nbspto produce gaseous carbon dioxidenbspco2nbspand
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we are a telemarketing company our standards is that call for 450 of sales per hour of telephone calling time telephone
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