When a solid mixture of MgCO3 and CaCO3 is heated
Chapter 4, Problem 91(choose chapter or problem)
When a solid mixture of MgCO3 and CaCO3 is heated strongly, carbon dioxide gas is given off and a solid mixture of MgO and CaO is obtained. If a 24.00 g sample of a mixture of MgCO3 and CaCO3 produces 12.00 g CO2, then what is the percentage by mass of MgCO3 in the original mixture?
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