Question

How do tou know that reaction of baking soda and Vinegar is a chemical change? How to canfirm chemical change.​

Answer 1

Answer:

To confirm that it is a chemical change, Try to reverse tye change, If it is irreversible change then it is a CHEMICAL CHANGE

Answer 2

Answer:

The reaction of baking soda and Vinegar is a chemical change.

Explanation:

Adding vinegar to baking soda is a classic example of a chemical change

Baking soda - Chemical name, sodium bicarbonate with formula $NaHCO_{3}$

Vinegar - A dilute solution of acetic acid in water. Acetic acid is also known as ethanoic acid, with the formula $CH_{3} COOH$

CHEMICAL REACTION

When baking soda is mixed with vinegar, something new is formed. The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution.

Reaction is:-

Sodium bicarbonate and acetic acid reacts to carbon dioxide, water and sodium acetate.

$NaHCO_{3}$ + $CH_{3}COOH$ ⇒$CO_{2} + H_{2} O + NaCH_{3} COO$

Physical changes

The solid baking soda was placed in liquid vinegar producing carbon dioxide gas, which is evident because of the formation of bubbles in the foaming mixture. Eventually all of the solid dissolved and reacted producing a new liquid solution.

During the reaction, a solid and liquid have been chemically reacted to form a gas and a liquid. This experiment can also be used to explain foams, as liquids or solids containing gas bubbles.