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When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of change is it? Explain.
Answer:
- When baking soda is mixed with lemon juice, bubbles are formed due to the evolution of carbon dioxide gas .
- Since a gas is being evolved , this is a chemical change .
Lemon juice (Acetic acid) + Baking Soda (Sodium Bicarbonate) —> Carbon Dioxide gas + other substances
- In this change, citric acid contained in lemon juice reacts with sodium hydrogen carbonate which results in the evolution of carbon dioxide gas.
