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Balanced Chemical Equation

give balanced...

Question

give balanced equation for preparation of:
calcium oxide to calcium chloride to calcium carbonate

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Solution

Calcium oxide reacts with hydrochloric acid to form calcium chloride.
CaO + 2HCl --> CaCl2 + H2O

Calcium chloride will replace sodium carbonate to form calcium carbonate and sodium chloride:
CaCl2(aq) + Na2CO3(aq) --> CaCO3(s) + 2NaCl(aq)

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