Answer:
Solution : When sodium hydrogen carbonate is added to acetic acid then carbon dioxide (CO2) gas is evolved. CO2 trun s lime water milky it is a non supporter of combustion and is absorbed by strong alkalies like NaOH. Sodium hydrogen carbonate when added to acetic acid evolves a gas.
Step-by-step explanation:
Chemically the ethanoic acid reacts with the sodium hydrogen carbonate to form carbon dioxide gas and water. The carbon dioxide gas produced rushes away from the water. This is seen as bubbles.