45.Describe an activity with diagram to illustrate that the reaction of metal carbonate or metal bicarbonate with acids produces carbon dioxide. Write the relevant equations of all the reactions that take place. Name any two forms in which calcium carbonate is found in nature.
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In this activity, we are using sodium carbonate and hydrochloric acid
Arrange the apparatus as shown below
Sodium carbonate is added to hydrochloric acid in a boiling tube which is immediately stoppered.
A delivery tube from the first boiling tube in dipped into limewater in the second boiling tube.
Limewater is used to test for carbon dioxide. The presence of carbon dioxide is determined when a white precipitate forms.
Reaction in the first boiling test tube:
Na2CO3 + 2HCl = 2NaCl + CO2 + H2O
Reaction in the second boiling tube:
CO2 + Ca(OH)2 = CaCO3 + H2O
The white precipitate is CaCO3
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Explanation:igchfif y
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