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My friend is coky I need to know a white powder substance that does not react with an acid
Iodine does not react with sugar, it reacts with starch.
Iodine will will not react with hydroelectric acid
If you do not have cream of tartar, baking powder will work just as well, or better. If the recipe calls for both cream of tartar and baking soda, leave out the soda if you use baking powder - it already has soda in it.
Baking powder is a 1:3 ratio of baking soda to cream of tartar. You cannot just substitute cream of tartar for baking powder - you also need the baking soda.
no
the iodine will react with carbohydrate to give different color .
No. If it did, it'd spontaneously boil, fume of burn in its container.
Baking powder is baking soda with cream of tartar added to it.
Cream of tartar has an indefinite shelf life. As long as it is still powder, it is fine to use.
baking soda