Given that δH∘f[h(g)]=218. 0 kj⋅mol−1 δH∘f[c(g)]=716. 7 kj⋅mol−1 δH∘f[ch4(g)]=−74. 6 kj⋅mol−1 calculate the average molar bond enthalpy of the carbon–hydrogen bond in a ch4 molecule.

Defidently don't start answering as quick as possible some teachers do say to read the hardest first but i would think the most logical answer is c carefully read the passages and i structions