A 2.50 g piece of solid magnesium carbonate (MgCO3, 84.32 g/mole) is placed into a beaker containing 55.0 mL of 1.25 M hydrochloric acid (HCl, 36.46 g/mole) and the following reaction occurs:
MgCO3 (s) + 2 Hal (aq) (arrow) MgCl2 (aq) _H2O (l)
What is the limiting reactant?
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