Baking Soda mixed with calcium chloride and phenol red solution chemicla or physical change?

When baking soda (sodium bicarbonate) is mixed with calcium chloride and phenol red solution, a chemical reaction takes place. The baking soda reacts with the calcium chloride to form calcium carbonate, water, and carbon dioxide gas. The phenol red solution acts as an indicator, changing color from red to yellow in the presence of an acid. The carbon dioxide gas produced in the reaction causes the phenol red solution to turn yellow, indicating that a chemical change has occurred.