posted by .

colorless vinegar added to purple cabbage juice turns pink What is the reason behind and why is it considered a chemical change?

  • chemistry -

    Red cabbage juice contains a chemical (a flavin) called anthrocyanin. It turns a different color in acid and basic solutions. The chemical change is the switch from the acid to the base form.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physical Science

    During which of the following chemical changes does a precipitate form?
  2. chemistry

    Hi I have this problem I have no idea where or what to do. 25.00 mL of 0.0500 M Na2CO3 was titrated with HCl(aq) using phenolphthalein indicator, the 'end-point' (color change from pink to colorless) was reached when 10.50 mL of the …
  3. Chemistry

    Can someone please help me on this two Chemistry questions...they are from my lab....the lab was on Acids and Bases using Red Cabbage Indicator. Q1- How consistent was the cabbage juice indicator for this lab?
  4. chemistry

    I am doing a home lab experiment about acid-base neutralization. I just need a little help to see if I am doing it correctly. I completed the experiment and recorded the data. We were to add 25 ml of vinegar and the 1 ml of cabbage …
  5. Science

    Does my hypothesis match with my intro? I'm writing a lab report. Introduction: The intention of this lab is to find the pH of different household material. Boiled red cabbage juice will be used as the pH indicator. pH is the chemical
  6. Chemistry,please help

    You are working with the following equilibrium system in which one chromium complex is blue and one chromium complex is purple. The system is at equilibrium and is currently blue. Predict how the color will change if aqueous Ag+ ions …
  7. Chemistry

    Help! I need to do this review question and don't know where to start ! The label on a bottle of vinegar claims that the bottle conatins 5% (m/v) of acetic acid. In order to test this claim, a 50ml sample is titrated with sodium hydroxide. …
  8. Chemistry 111

    a)For the titration of an acid analyte with a NaOH titrant, a phenolphthalein endpoint will change from colorless to pink. If the "pink" resulted from perhaps only a half-drop(or less) of NaOH titrant and the Erlenmeyer flask is set …
  9. Chemistry

    Explain the chemical changes that occur in the red cabbage lab that changes the color of the cabbage juice. I know it has something to do with the hydrogen ions and maybe something to do with the electrons, but I don't understand what …
  10. chemistry

    In the red cabbage lab, we just took the cabbage juice and in 5 separate cups mixed it with 5 different liquids, ex: coke, milk, cleaning agent, etc, and matched the color to a ph chart to tell if it was a base or an acid. Simple lab. …

More Similar Questions