Given the following reactions Fe2O3 (s) + 3CO(q) 2Fe(s)+3CO2 (g)
3Fe(s) + 4CO2 (g) 4CO(g)+Fe3O4 (s) Delta H^ =-28.0 k) Delta H^ =+12.5kJ the triangle H^ 0 the reaction 3Fe2O3 (s)+CO(g) CO2 (g) + 2Fe3O4(s) the enthalpy of the reaction of Fe2O3 with
CO3Fe2O3 (s) + CO (g) → CO2 (g) + 2Fe3O4 (s) is kJ.
a) 40.5
b) +109
c) -15.5
d) -109
e) -59.0

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

Which element is least likely to undergo a chemical reaction