English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 083 Cu2Se copper(I) selenide Cu2Te copper(I) telluride Cu3As copper(I) arsenide Cu3P copper(I) phosphide Cu3(PO4)2 copper(II) phosphate Cu3Sb copper(III) antimonide Cu9S5 copper sulfide Cu3Zn2 copper zinc - brass