ketchup
No. Baking mix (such as Bisquick) contains flour, baking powder and other ingredients.
No, no heat is involved when mixing baking powder and water.
probably not
Of course. I sometimes mix baking soda powder with cream of tartar powder to make baking powder, which of course is mixed with flour powder and sometimes powdered milk. Other powders may startlingly combine, causing heat and other changes.
It makes the pancakes rise.
Yes
Probably not. Baking mix has other ingredients such as baking soda/powder and dried milk or eggs. What type of baking mix is it and what are you making? If you're just battering something it will be fine, but if you're baking something, not so much.
Mix water and baking powder
To make baking powder from baking soda at home, mix 1 part baking soda with 2 parts cream of tartar. This combination will act as a leavening agent in your baking recipes.
1 teaspoon of baking powder per cup of flour, mix it with a little warm water and then add to mix.
NO, baking mix usually has baking powder or baking soda in it and sometimes milk solids plus flour of coarse.
Yes it aids in the rising. When a recipe contains baking powder and baking soda, the baking powder does most of the leavening. The baking soda is added to neutralize the acids in the recipe plus to add tenderness and some leavening.