Is baking soda a compound?

1 Answer
Apr 29, 2017

Answer:

To a first approximation, #"baking soda"# is a pure chemical compound.

Explanation:

The #"baking soda"# you use to make cakes, i.e. the commercial product, is (pure?) #"sodium bicarbonate"#, i.e. #Na^(+)""^(-)HCO_3#.

#"Baking powder"# is another leavening agent, but it contains #"cream of tartar"#, i.e. #"potassium ditartrate"#, #KC_4H_5O_6#, a salt of a diacid. When you add baking soda to a cake batter, the acid in the batter, the butter and the eggs, is conceived to react with the carbonate to make #CO_2#, which raises the cake, and makes it fluffy and spongy. Yumm.