Question

Is bread rising a chemical change or physical change

Answer 1

There is definitely a chemical change taking place during baking, and that is the conversion of baking soda (sodium bicarbonate, NaHCO3) to carbon dioxide (CO2).

Step-by-step explanation:

Hope this helps :)

Answer 2

Chemical. Things within the bread are having chemical reactions, such as the yeast reacting to the heat and baking.