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Question
Give one method for industrial preparation and one for laboratory preparation of CO2.
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Solution
Caron dioxide
In the laboratory, CO2 can be prepared by the action of dilute hydrochloric acid on calcium carbonate. The reaction involved is as follows:
\[\ce{CaCO_3 + 2HCl_{(aq)} -> CaCl_{2(aq)} + CO_{2(g)} + H_2O_{(l)}}\]
CO2 is commercially prepared by heating limestone. The reaction involved is as follows:
\[\ce{CaCo3 ->[\Delta] CaO + CO2\uparrow}\]
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