Error:
Mg%28OH%292 %2B CaCO3 %2B HCl %3D MgCl2 %2B CaCl2 %2B CO2 %2B H2O
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Unexpected character ('%')Mg%28OH%292 %2B CaCO3 %2B HCl %3D MgCl2 %2B CaCl2 %2B CO2 %2B H2O
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Unexpected character ('%')