You can tell that a chemical reaction is occurring because bubbles are produced. The reaction between vinegar (an acid) and baking soda (a base) produces carbon dioxide gas, which creates bubbles. This is a sign of a chemical change taking place.
Vinegar and baking soda are put in a beaker together, and they undergo a chemical reaction. Look at the picture. How do you know a chemical reaction is occurring?
(1 point)
Changes shape
Bubbles are produced
Changes size
There is no chemical reaction. This is a physical change
1 answer