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3.68g of a mixture of calcium carbonate ...

3.68g of a mixture of calcium carbonate and magnesium carbonate when heated strongly leaves 1.92g of a white residue. Find the percentage composition of the mixture.

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To solve the problem of finding the percentage composition of a mixture of calcium carbonate (CaCO₃) and magnesium carbonate (MgCO₃) that leaves a white residue upon heating, we can follow these steps: ### Step 1: Define the Variables Let: - \( x \) = mass of CaCO₃ in grams - \( 3.68 - x \) = mass of MgCO₃ in grams (since the total mass of the mixture is 3.68 g) ### Step 2: Write the Decomposition Reactions ...
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