On heating calcium carbonate decomposes as caco3-cao+co2 calculate the mass of caco3 requirez to prepare 2.24l of co2am at stp
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Kc for the equilibrium H2(g)+I2(g) =2HI is 45.o.
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Calcium carbonate is strongly heated until it undergoes thermal decomposition to form calcium oxide and carbon dioxide. The calcium oxide (unslaked lime) is dissolved in water to form calcium hydroxide (limewater). Bubbling carbon dioxide through this forms a milky suspension of calcium carbonate.
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