Question

write an example of a chance were the gas is evolved ?is it is a chemical reaction or physical reaction?​

Answer 1

Answer:

x

Explanation:

Answer 2

When we add vinegar to baking soda, carbon dioxide gas is evolved due to a chemical reaction.

- On mixing vinegar (liquid) and baking soda (solid), they produce sodium acetate (liquid), water and carbon dioxide (gas).

- So, there is a change taking place.

- Since new products are forming here, hence, it is a chemical reaction.

- The balanced chemical reaction can be given as:

NaHCO3 (s) + CH3COOH (aq) → CH3COONa (aq) + H2O (l) + CO2 (g)