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. view available hint(s) check all that apply. caco3(g)→ cao+ co2(g) li(s)+12f2(g)→lif(s) co(g)+12 o2(g)→ co2(g) 2li(s)+f2(g)→2lif(s) li(s)+12f2(l)→lif(s) c(s, graphite)+ o2(g)→ co2(g)

reaction 2,5,6

Explanation:

First, we need to define what the enthalpy of formation is and what the enthalpy of reaction is

Formation Enthalpy: It is the variation of the calorific energy in the reaction of ONE MOL of a compound starting from the elements.

Reaction Enthalpy: It s the variation of the calorific energy in the reaction of reactives, in this cases could be any quantity of mol

Then: We have six reactions:

1)CaCO3(g)→ CaO+ CO2(g)

2)Li(s)+12F2(g)→LiF(s)

3)CO(g)+12 O2(g)→ CO2(g)

4)2Li(s)+F2(g)→2LiF(s)

5)Li(s)+12F2(l)→LiF(s)

6)C(s,graphite)+ O2(g)→ CO2(g)

The enthalpy of reaction will be equal to reaction enthalpy when we produce one mol from elements

The answer is the reactions 2,5,6

"the periodic table is arranged in order of atomic number."

a