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 main observations.

Answer 1

The two observations are :-
(i) Carbon-di-oxide gas is liberated.
(ii) Water is one of the products.

Answer 2

Answer :

When we take a pinch of sodium hydrogen carbonate powder in a test tube and add drop by drop of acetic acid to it then sodium acetate and carbonic acid is formes and then carbonic acid decomposes into water and carbon dioxide.

The balanced chemical reaction will be,

$NaHCO_3(s)+CH_3COOH(aq)\rightarrow CH_3COONa(aq)+H_20(l)+CO_2(g)$

This is a double replacement reaction.

The two main observations are :

1) carbon dioxide gas is liberated.

2) formation of water.