Which one of the equations below is an endothermic reaction?
A) Sro (s) + CO, (9) - SrCO, (S)AH° = -234
KJ/mol
B) H2(g) + F2 (g) 2 HF (9) AH° = -79.2
KJ/mol
C) H2 (9) + C (s) + N, (g) - 2 HCN (9) AH° =
270.3 kJ/mol
D) 2 K (s) + 2 H20 (1)
AH° = -393.1 kJ/mol
2 KOH (aq) + H2 (9)

fe 55.85 g/mol and h2o 18.02 g/mol.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?