Question

if you take A Pinch of sodium hydrogen carbonate powder in a test tube and add drop by drop Acetic Acid to it what would you observe immediately list any two men observation

Answer 1

A student added acetic acid in sodium hydrogen carbonate , he observes that CO2 gas is evolved . CO2 gas can be tested by passing it through lime water . Lime water will turn milky by the formation of CaCO3. The reaction is :
CH3COOH + NaHCO3 → CH3COONa + CO2 + H2O

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Answer 2

A colorless, gas carbon dioxide is released. And water is formed