English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 027 BaU2O7 barium uranium oxide BaWO4 barium tungstate BaZrO3 barium zirconate Ba2Na(NbO3)5 barium sodium niobate Ba2P2O7 barium pyrophosphate Ba2V2O7 barium pyrovanadate Ba2XeO6 barium perxenate Ba3(CrO4)2 barium chromate(V)