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Question

Complete the following reaction:

Na2CO3(s)+H2SO4(aq) ?


A
Na2CO3+H2O+CO2
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B
Na2SO4+H2O
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C
Na2SO4+CO2
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D
Na2SO4+H2O+CO2
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Solution

The correct option is D Na2SO4+H2O+CO2

Sodium carbonate (Na2CO3) reacts with sulphuric acid (H2SO4) to form carbonic acid (H2CO3) and sodium sulphate (NaSO4). The reaction involved is:

Na2CO3(s)+H2SO4(aq)H2CO3(aq)+Na2SO4(aq)

Carbonic acid (H2CO3) rapidly decomposes to form carbon dioxide (CO2) and water (H2O). The reaction involved is:

H2CO3(aq)CO2(g)+H2O(l)

Therefore, the overall reaction is depicted as follows:
Na2CO3(s)+H2SO4(aq)Na2SO4(aq)+H2O(l)+CO2(g)


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