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Problem- The reaction between the limestone and hydrochloric acid produces carbon dioxide as shown in the reaction.
CaCO3(s) + 2HCl(aq) ? CO2(g) + CaCl2(aq) + H2O

Q) How many grams of CO2 can be made by reacting 149 g of CaCO3 with 149 g of HCl?

Q) How many grams of HCl are left over?

Chlorine dioxide, ClO2, has been used as a disinfectant in air conditioning systems. It reacts with water according to the equation:
6ClO2 +3H2O ? 5HClO3 + HCl

If 140.6 g of ClO2 is mixed with 38.3 g of H2O, how many grams of which reactant remain when the reaction is complete?

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Category:- Chemistry
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