How to get magnesium chloride from magnesium carbonate?

To get magnesium chloride (MgCl) from magnesium carbonate (MgCO3), you need to add perchloric acid (HCl) to it. As a result, we get magnesium chloride (MgCl) and carbonic acid (HCO3).
MgCO3 + HCl = MgCl + HCO3.
This equation does not need an equation.

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