Consider the reaction: 2m(s) + HCl(aq) → 2MCl₃(aq) + 3H2(g). The enthalpy change for this reaction is -904.0 kJ. What is the generic metal represented by 'm' in this reaction?
1) Sodium (Na)
2) Magnesium (Mg)
3) Aluminum (Al)
4) Iron (Fe)