English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 121 Ga2O3 gallium(III) oxide Ga2(SO4)3·18H2O gallium(III) sulfate - octadecahydrate Ga2S3 gallium(III) sulfide Ga2Te3 gallium(III) telluride GeBr4 germanium(IV) bromide GeH3COOH 2-germaacetic acid GeI2 germanium(II) iodide GeI4 germanium(IV) iodide