Lemon juice contains ________ which when mixed with baking soda reacts to form carbon dioxide and sodium citrate causing the liquid to fizz and bubble.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. citric acid.
- When basic baking soda (NaHCO3) is combined with acidic lemon juice (mainly citric acid, H3C6H5O7) an acid base reaction occurs.
- The reaction releases CO2 which can be captured using dish soap to form bubbles.
- H3C6H5O7 (aq) + 3 NaHCO3 (s) → 3 CO2 (g) + 3 H2O (l) + Na3C6H5O7 (aq) is the chemical formula.