Average Graduate Management Admission Test (GMAT) scores can be a good indicator of student quality -- often, schools with higher average GMAT scores are recognized more broadly for the quality of their graduates. The best place to start is www.mba.com/military.
For example, FeSO 4 is named iron(2+) sulfate (with the 2+ charge on the Fe2+ ions balancing the 2â charge on the sulfate ion), whereas Fe 2 (SO 4) 3 is named iron(3+) sulfate (because the two iron ions in each formula unit each have a charge of 3+, to balance the 2â on each of the three sulfate ions).
This means you need 2 atoms of +3 Al giving you a total of +6 charges to react with 3 sulfate (SO4 -2 ), or a total of -6 charges. +6 and -6 gives you zero which is the charge of the whole aluminum sulfate. Allison Â· 5 months ago.