Baking powder is baking soda plus acid, and is used in recipes that don't have acid--acid being what makes baking soda leaven things. I've used baking powder in recipes that call for baking soda, and it didn't hurt them; maybe they were a bit fluffier but that's okay.
No, two totally diffenety substances. Baking powder has a leavening agent which produces the inflation needed in baked goods. Cornstarch does not.
The cookies will not rise, since cornstarch is not a leavening agent.
Not all powders. Baby powder is talcum powder or corn starch, and baking powder is baking soda,salt,and starch. But, sulfur sand is usually in powder form.
No
Then it wont come out good.
No. the only thing these two have in comon is the colour.
No. Corn starch is usually used as a thickener (for gravies, soups, puddings, etc)., whereas baking soda is used as a puffer-upper for biscuits, cookies and unleavened breads and so on. Use flour as a substitute for corn starch, and baking powder as a substitute for baking soda.
"Baking powder" is a leavening agent and is a mixture of baking soda (sodium bicarbonate), one or more acid salts, and a starch (usually cornstarch).
No, you would be better off replacing it with flour. Corn starch isn't really a leavening agent (like baking powder); it is more of a thickening agent that binds things together.
Possibly baking powder?
The weight of one teaspoon of baking powder Is approx 4Grammes
baking soda has a crystalline appearance because it is a form of salt. [edit]Duude you're doing the Mystery Powder Analysis Gizmo lol. Now I have the answer ITS B.salt you are soo right i am doing the Gizmo its annoying!
Baking powder leaves more residual and "cakes" together. Corn starch is a little bigger and doesn't taste like baking powder.
Here are the ingredients for double-acting baking powder -- if yours has these ingredients, then it's double-acting. (My can of Kroger baking powder is.) Double Acting Baking Powder Ingredients: Corn Starch Bicarbonate of Soda Sodium Aluminum Sulfate Acid Phosphate of Calcium