Avery B.

asked • 04/05/21

Ethalpy reactions

The following reaction is endothermic.

  1. MgCl2(s) Mg(s) + Cl2(g)    ΔH(1) = 641 kJ

Calculate the enthalpy change for the reaction of the elements to form one mole of MgCl2(s).

Mg(s) + Cl2(g)MgCl2(s)    ΔH(2) = ??? kJ


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