Does red cabbage juice fizz when you mix baking soda with it?

Yes. When baking soda (sodium bicarbonate) is mixed with an acid, it undergoes a chemical reaction that produces carbon dioxide gas. This gas creates the fizzing or bubbling effect. Red cabbage juice contains anthocyanins, which are natural pigments that act as acid-base indicators. When baking soda is added to red cabbage juice, the anthocyanins change color from red to purple, indicating a change in the acidity of the solution. The carbon dioxide gas produced by the reaction also contributes to the fizzing effect.