Question

8. When washing soda is mixed with lemon juice bu
in lemon juice, bubbles are formed with the evolution of
gas. What type of change is it .Explain?​

Answer 1

Explanation:

it is a chemical exchange as it cannot be reversed the gas produced is CO2

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Answer 2

When baking soda (Sodium hydrogen carbonate) is mixed with lemon juice (citric acid), bubbles are formed. The bubbles are formed due to the evolution of carbon dioxide gas. This is a chemical change.

In this change, citric acid contained in lemon juice reacts with sodium hydrogen carbonate which results in the evolution of carbon dioxide gas.

Lemon juice + Baking soda → Carbon dioxide + Other substances

Citric acid Sodium

Hydrogen carbonate

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