Question

an acidic gas which reacts with water to give two acids

Answer 1

Carbon dioxide reacts with water to form carbonic acid . Carbonic acid then dissociates to give the hydrogen ion (H+) and the hydrogen carbonate ion (HCO3-).

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Answer 2

acidic gas reacts with water
acidic gas iscreacting with water and forms co2 soda gas by this 1.acid gas2.co2 gas