1.

A student adds a spoon full of powdered sodium hydrogen carbonate to a flask containing ethanoic acid. List two main observations he must note in his note book, about the reaction that takes place. Also write chemical equaiton for the reaction.

Answer»

Solution :The TWO main observations are :
(a) Brisk effervescence of a gas that TURNS lime water milky. The gas released is `CO_(2)`.
(b) it is a neutralisation reaction RELEASING salt, water, `CO_(2)` and heat.
`CH_(3)COOH(aq) + NaHCO_(3)(s) rarr CH_(3)COONA(aq) + CO_(2)(g) + H_(2)O(l)`


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