* Ionic Compounds: Baking powder typically contains sodium bicarbonate (NaHCO3). This is an ionic compound because it consists of a metal (sodium) and a non-metal (carbonate) held together by electrostatic attraction.

* Covalent Compounds: Baking powder also contains acids like monocalcium phosphate (CaH5(PO4)2) or tartaric acid (C4H6O6). These are covalent compounds because they are formed by sharing electrons between non-metal atoms.

Therefore, baking powder is a complex mixture of both ionic and covalent compounds.