it doesnt
If you add the boiled blue water to vinegar it does turn red add it to water mixed with baking soda it turns green. I did it just cut the cabbage into small pices before boiling.
It is showing you if it is acid or akalis
You will get a frothy red mess. The baking soda and vinegar will combine to produce carbon dioxide as the acid in the vinegar combines with the base in the baking soda. The red cabbage will will make it colorful, and the water will slow the reaction. On the other hand, red cabbage and vinegar will make a nice pickled cabbage.
Red cabbage juice is a natural pH indicator that changes color based on the acidity or alkalinity of the solution. In vinegar, which is acidic, the cabbage juice turns red or pink. In baking soda, which is alkaline, the cabbage juice turns blue or green. This color change is due to the interaction between the pigment molecules in the cabbage juice and the different pH levels of the solutions.
no
it will be purple
The color change, though physical by itself, is caused by a chemical change of some colored substances in cabbage.
Red cabbage juice turns blue when mixed with baking soda, due to a change in pH levels.
It is a chemical change
Mix it with vinegar
When red cabbage juice is mixed with baking soda, a chemical reaction occurs. The baking soda is a base and reacts with the anthocyanins in the red cabbage juice, causing a color change. The mixture will turn blue or blue-green due to the change in pH.
It is a chemical change
Yes.
The vinegar-baking soda reaction is a chemical change.