is the mixture of baking soda and vinegar a chemical change or a physical

Answer 1

The mixture of baking soda (sodium bicarbonate) and vinegar (acetic acid) results in a chemical change. When these two substances combine, they undergo a chemical reaction that produces carbon dioxide gas, water, and sodium acetate. The formation of bubbles and fizzing is evidence of the release of carbon dioxide gas, indicating that a new substance is being formed. Therefore, this reaction is classified as a chemical change rather than a physical change.