English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 130 HfBr4 hafnium(IV) bromide HfF4 hafnium(IV) fluoride HfOCl2 · 8H2O hafnium(IV) oxychloride - octahydrate HfOH(C2H3O2)3 hafnium(IV) acetate - basic Hf(SO4)2 hafnium(IV) sulfate Hg(BrO3)2 · 2H2O mercury(II) bromate - dihydrate HgBr2 mercury(II) bromide Hg(C2H3O2)2 mercury(II) acetate