no
No, it is a powder unless it is dissolved in water (in which case it would be a solution of baking soda).See the Related Questions for more information about baking soda.
Baking Powder
Baking powder in a recipe helps your item rise when baking.
baking powerder is baking powder is not the same!
baking powder
What ? Are you crazy ? Bleach on the face ?
Baking soda does not rise as well as baking powder
No, baking powder does not absorb odors when used in baking.
Baking powder is an acid
baking powder is neutral
Baking soda is an alternative to baking powder that can be used in baking recipes.
Phenolphthalein is colorless in acidic conditions and turns pink in basic or alkaline solutions. In baking powder, which is alkaline due to its bicarbonate content, phenolphthalein would appear pink.