Balance the subsequent equations. Utilize the lowest possible whole number coefficients. Comprise states-of-matter under the given conditions in your answer.)
(a) KNO3(s) ? K2O(s) + N2O5(g)
(b) C10H22(l) + O2(g) ? CO2(g) + H2O(g)
(c) Fe(s) + S8(s) ? FeS(s)
(d) RbClO3(s) ? RbCl(s) + O2(g)
(e) Eu2O3(s) + H2S(g) ? EuS(s) + H2O(g) + S(g)