My Cool Experiment at Home school

I had a really cool experiment at Home school today. It involved a chemical reaction! It started out by when I got a 2 liter bottle, and filled it with vinegar. Than I got some hot  water, filled it up with cabbage leaves, and waited for it to boil. While it was boiling, I filled a uninflated balloon with with baking soda. After the leaves were done, I put the liquid(which was blue) and put it inside the bottle. It turned pink! After that, I put the balloon on top of  the  the bottle, poured it in.... and Wow the color foamed and turned purple, the balloon filled with air! It was exciting!