Question

When baking soda is mixed with vinegar, bubbles are formed with the evolution of a gas.
(i) Represent this chemical reaction using a word equation.
(ii) Name the gas evolved.
(iii) Write a test to identify this gas.

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Answer 1

Explanation:

baking soda is a base while vinegar is an acid

and we know that when a base reacts with acid it is a neutralization reaction.

thus, The gas evolved in the reaction is carbon dioxide, which is a colourless and odourless gas.

NaHCO3 + CH3COOH= CH3COONa + Co2+ H2O

the nature of the gas by adding calcium hydroxide and if we get white precipitate we will know that the gas is carbon dioxide

Answer 2

Answer:

Limewater and Carbon dioxide test makes limewater milky

Explanation:

Vinegar + Baking soda --------------> C02

C02 + Ca[OH] 2aq ---------------> CaCo3[s] +H20