English Vocabulary Flash Cards - Chemical Formulas @ englishpdf.com and englishteststore.com File 154 MnI2 manganese(II) iodide MnMoO4 manganese(II) orthomolybdate Mn(NO3)2·4H2O manganese(II) nitrate - tetrahydrate MnO manganese(II) oxide Mn(OH)2 manganese hydroxide MnOOH manganite MnO2 manganese dioxide MnO4− permanganate ion