What is the nature of baking soda?
Baking soda is basic in nature. It has a pH of 8.3. Baking soda is comprised of sodium bicarbonate, a chemical with a basic (high) pH. This high pH allows the baking soda to react with other foods in special ways. For example, when baking soda is mixed with an acid (low pH), they'll instantly react to produce carbon dioxide gas.