Ammonia burns in the presence of a copper catalyst to form nitrogen gas. 4nh3(g) + 3o2(g) → 2n2(g) + 6h2o(g) δh = –1267 kj. What is the enthalpy change to burn 100 g of ammonia? molar mass=17 amu.

Mason drew the cladogram shown. i give the brainliest which statements best describe the cladogram? check all that apply. reptiles are the most primitive. birds and reptiles are most closely related. frogs are more closely related to fish than birds. frogs are more closely related to birds than fish. fish are the most primitive.