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Consider this reaction involving an unknown element X. F. + 2 XBr —Br, + 2 XF When 2.900 g of XBr reacts, 1.234 g of Br, is p
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be element gmal ef mas molar let Cuiva 21009 X Br= Macs rmass reacted X BY of Moles Moleculas mass ै ४३. 2900 Simi lasly of Oef 1 o adlattbn sat state he५e dat on tate stable most tere aleo of of L08 39lmal is Sor molas maes is ELemeat Ag (sves)

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