Question

Is this reaction a double displacement reaction?
$C{H_3}COOH(aq) + NaHC{O_3}(s) \to C{H_3}COONa(aq) + C{O_2}(g) + {H_2}O(l)$

Answer 1

Double displacement reactions are those in which two compounds react by exchanging ions to produce two new compounds. Positive ions share negative ion partners in double substitution reactions. Ionic compounds immersed in water undergo a lot of double displacement reactions. The general equation represents a double substitution reaction.
$AB + CD \to AD + CB$

Complete answer:
Sodium hydrogen carbonate, also known as sodium bicarbonate, reacts with acetic acid to form sodium acetate, and produces carbon dioxide smoke, and is confirmed when lime water becomes milky. This is a carboxylic acid confirmatory procedure.
$NaHC{O_3} + C{H_3}COOH \to C{H_3}COONa + C{O_2} + {H_2}O$
Since the $Na$ is displaced by the $H$ of $C{H_3}COOH$ , this is a double displacement reaction. Since one compound is converted into two distinct substances, there is also a decomposition reaction.
${H_2}C{O_3}(aq) \to C{O_2}(g) + {H_2}O(l)$
Now when we add the above two equation we get,
$C{H_3}COOH(aq) + N{a_2}C{O_3}(s) \to C{H_3}COONa(aq) + C{O_2}(g) + {H_2}O(l)$
A solid and a liquid is chemically reacted to create a gas and a liquid during the reaction. This experiment can also be used to describe foams, which are gas-filled liquids or solids.

Note:
When baking soda and vinegar are combined, a new substance is formed. Carbon dioxide gas easily foams up the mixture. All of the baking soda can be allowed to react and dissolve into the vinegar solution if enough vinegar is used. This is a real life example where Carbon dioxide, water, and sodium acetate are formed when sodium bicarbonate and acetic acid react.