30 . Which of the following reactions is NOT an oxidation-reduction reaction?
(A)
(B) NaOH (aq) + HCl (aq) → NaCl (aq) + H 2 O (l)
(C) H 2 O 2 (l) → H 2 O (l) + O 2 (g)
(D) CH 4 (g) + O 2 (g) → H 2 O (g) + CO 2 (g)
(E) Mg (s) + 2 HCl (aq) → MgCl 2 (aq) + H 2 (g)31 . The enthalpy of formation of H+(g) is 1536 kJ/mole. What is the heat of formation of H 2
gas?
(A) 3,072 kJ
(B) 1,536 kJ
(C) 0
(D) −1,536 kJ
(E) −3,072 kJ32 .
Given the above thermochemical reactions, what is the heat of reaction for the formation
of SO 3 (g) provided below?(A) −495 kJ
(B) −396 kJ
(C) −198 kJ
(D) +99
(E) +198 kJ