Baking powder and baking soda both act as a leavening agent. They would do the same thing
No, you cannot baking powder and baking soda are used for different purposes.
It helps it rise and creates a softer cookie. If that's not right u should by a cookbook
The recipe that I use calls for baking soda.
The original Nestlés Toll House cookies (chocolate chip cookies) recipe calls for baking soda, not baking powder. There is no substitute for baking soda or baking powder in a recipe. You have to have it.
If the recipe calls for it, yes.
Only if the recipe calls for it. Some recipes only call for Baking Powder. It is as simple as reading the recipe you have in front of you.
Yes, but one should reduce the amount of salt in the recipe. When one does not have baking soda, it is best to use a cookie recipe that calls for baking powder, because the two ingredients are not identical.
Baking soda and baking powder are very different in how they work. Think of baking powder as making something more light and fluffy. Baking soda is going to make something taste less sweet and slightly more light. But yes. If your recipe calls for baking soda, or baking powder using the correct amount of both is important. You cannot substitute one for the other.
It's 11g or 1 tablespoon It's 11g or 1 tablespoon
I've run across that a few times, usually less soda than baking powder. Shouldn't be a problem.
You can use self-rising flour in any recipe that also calls for baking powder. When you do use self-rising flour be sure to omit baking powder, salt and baking soda if in the recipe.
Not unless the recipe specifically calls for yeast. The baking soda generally does the same thing.
Add a teaspoon of baking soda for each cup of sour milk.
There is no need to. Baking powder has baking soda in it already. Baking powder is a mixture of cream of tartar and baking soda. Adding extra soda to it might make the bake good you are preparing come out with "unexpected" results. If a recipe actually calls for it, fine, but I have never seen one that calls for both. If you don't have enough of one or the other for you recipe, you can mix them but if you're low on soda, the baked good may not rise as much. It's best to follow the amounts in the recipe since each one responds a little differently depending on the acid content of the batter.