Question

For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)?
You do not need to look up any values to answer this question.
Check all that apply.
Check all that apply.
C(s,graphite)+O2(g)→CO2(g)
Li(s)+12F2(l)→LiF(s)
CO(g)+12O2(g)→CO2(g)
BaCO3(s)→BaO(s)+CO2(g)
2Li(s)+F2(g)→2LiF(s)
Li(s)+12F2(g)→LiF(s)

Answer 1

@whpalmer4

Answer 2

it is easy to tell whether the reaction = product

Answer 3

do you know anything about standard state?

Answer 4

look at their states- solid, liquid, gas, etc. anything that looks funny like Oxygen in liquid state will not have the same reaction and product.