Assertion: baking powder's acid | /r/HasProperty | powdered
Facets:
Source sentences:
text: Baking powder is sodium bicarbonate mixed with a powdered acid and a starch.
text: Composed of baking soda, a powdered acid, and a starch (to absorb moisture and prevent the acid or base from reacting prematurely), baking powder was marketed as the all-in-one solution for busy housewives.