Now, fold your bias tape over to the back side, encasing the raw edge. Pin as you go. Bias tape folded over to the back side: This is what my pinning looks like. I slip the pins under the bias tape on the top side and make sure it catches the bias on the back.
Baking Powder. Baking powder on the other hand, is actually a combination of baking soda plus another acid, in the presence of an inert stabilizer (a fancy term for an inactive ingredient that keeps the mixture from reacting), which is often a bit of cornstarch.
Baking Soda vs Baking Powder. While baking soda is strictly an alkaline compound, baking powder is sodium bicarbonate already combined with an acid. The acid compound in baking powder is in the form of a salt, which means it will not react with the base until a liquid is added. Baking soda is good to use in recipes which include other acidic ingredients. If a recipe does not contain enough acids, using baking powder is appropriate as it contains its own acid.