Hydrides have been proposed as a means ofstoring hydrogen gas for fuel in solid form (the reactions thatform them are generally reversible). Take, for example magnesium hydride, MgH2. Assuming both that 74% of the hydrogengas can be recovered from the hydride and the complete combustionof the hydrogen gas released, how much energy can be stored in a3.00 kilogram sample of magnesium hydride? Assume that the water produced in the reaction is in the liquid state.