If 25 moles of oxygen are used how many moles of Fe2O3 are produced?

What overall charge must all compounds have

Which element would mostly likely have an electron affinity measuring closest to zero

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m