2M +6HCl–>2MCl+3H2 Delta H= -638.0 Kj
HClg—>HCl aq= Delta H -74.8 Kj
H2+Cl2–>2HCl Delta H -1845.0 Kj
MCl3s–> MCl3 aq Delta H -249.0 Kj
Use the information above to determine the enthalpy of the following reaction.
2M +3Cl2–>2MCl3 Delta H =???