What is baking powder a mixture of?

Baking powder:

• It is a solid and dry powder and it is a mixture of a strong base and a weak acid.
• It is composed of a mixture of sodium hydrogen carbonate and mild acid like tartaric acid.
• The base and acid are prevented from reacting prematurely by the inclusion of a buffer such as cornstarch.

Uses of baking powder:

• It is used in baking bread, cakes, cookies and other products.
• It is used to clean household items.