Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: Fe2+, Ni4+, I-, S2-

What can be the use of smoke transformed into liquid?

Which statement is true about ionic compounds?

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?