English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 022 Ba(CN)2 barium cyanide BaC2O4 barium oxalate BaC4 barium carbide BaCO3 barium carbonate Ba(ClO4)2 barium perchlorate BaCl2 barium chloride BaCrO4 barium chromate or barium chromate(VI) BaF2 barium fluoride