Question

explain the reaction of sodium carbonate with hydrochloric acid​

Answer 1

Hcl acts with sodium carbonate, then sodium chloride, carbon dioxide and water are formed. ... When carbon dioxide gas formed in the form of brisk effervescence is passed through lime water, it turns the lime water milky.

If you add Na2CO3 drop-wise into HCl and mix evenly, which means that HCl is exceeded, the reaction is: Na2CO3 + 2HCl === 2NaCl + H2O + CO2(g). When the molar ratio of Na2CO3 and HCl reaches 1:2, HCl is totally consumed, and there will be no reaction upon the adding of Na2CO3.

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