Question

Q.34 (a) How do metal carbonates and metal hydrogen
carbonates react with acids? Taking calcium as metal
write balanced chemical equations in both the cases
anthod to test the gas evolved in the reactions
​

Answer 1

Answer:

All metal carbonates and hydrogen carbonates react with acids to form a corresponding salt, carbon dioxide and water.

Metal carbonate + Acid → Salt + Carbon dioxide + Water

Metal hydrogen carbonate + Acid → Salt + Carbon dioxide + Water

For example, sodium carbonate reacts with dilute hydrochloric acid as follows:

Na

2

CO

3

(s)+2HCl(aq)→2NaCl(aq)+H

2

O+CO

2

(g)

Sodium hydrogen carbonate reacts with dilute hydrochloric acid as follows:

NaHCO

3

(s)+HCl(aq)→NaCl(aq)+H

2

O(l)+CO

2

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