2H2O2(g)_2H20 (g) + O2 (g)
Please find the enthalpy change and the reactant energy

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

What is impossible to do with a hypothesis

What is the mass of each element in a 324.8 sample of co2