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19-01-2021
Chemistry

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1.When acids react with carbonates,------------gas is liberated.

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tutorAnne tutorAnne

19-01-2021

Answer:When acids react with carbonates,---CO2--------gas is liberated.

Explanation:

Acids liberate Carbon IV oxide when they react with Carbonates bicarbonate

For examples

Acid +carbonate ⟶ Salt + Water + Carbon dioxide

Calcium carbonate + Hydrochloric acid will give Calcium chloride with the liberation of CO2 gas and water

CaCO3 + 2HCl →CaCl2 + CO2 + H2O

To Test for the presence of the CO2 Liberated, we pass the gas through lime water, if the lime water turns milky, then C02 gas is confirmed.

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