Using the values from Appendix C, calculate the value of change H degrees for each of the following reactions
(a) 4 HBr (g) + O2 (g) ? 2 H2O (l) + 2 Br2 (l)
(b) 2 Na(OH) (s) + SO3 (g) ? Na2 SO4 (s) + H2O (g)
(c) CH4 (g) + 4 Cl2 (g) ? CCl4 (l) + 4 HCl (g)
(d) Fe2O3 (s) + 6 HCl (g) ? 2 FeCl3 (s) + 3 H2O (g)