Question

when a pinch of baking soda is added to vinegar a hissing sound is produced why is it so? how will you identify the gas produced​

Answer 1

Vinegar(Acetic acid) + Baking soda(Sodium hydrogen carbonate) --> Carbon dioxide + sodium acetate + Water (H2O)

how will you identify the gas produced​ ?

1. When the gas evolved is passed through lime water, then lime water turns milky.

• Carbon dioxide (CO2) + Lime water [Ca(OH)2] --> Calcium Carbonate (CaCO3) + Water (H2O)

Answer 2

Baking soda is bicarbonate and vinegar is acetic acid,it is an acid base reaction which releases CO2, escaping through bubbles making a hissing sound.

CH3COOH + NaHCO3 ➡️ CO2 + Hissing sound

HOPE IT HELPS...