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Question

Why is sodium carbonate a basic salt? Write the chemical reaction.
[2 Marks]

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Solution

The salt formed by weak acid and a strong base is basic in nature. Sodium carbonate is formed by the combination of Sodium hydroxide (strong base) and carbonic acid (weak acid). Hence, it is basic in nature.
[1 Mark]
The chemical reaction is represented as;

H2CO3(aq) + 2NaOH(aq) → Na2CO3(aq) + 2H2O(l) [1 Mark]

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