It bubbles!
The baking soda dissolves in the water
Bicarbonate of soda and baking soda are the same thing. If you are referring to baking powder, please check the provided link which explains the difference between baking soda and baking powder, and what happens if you use them together.
Nothing happens when backing soda and sand are mixed. There is no reaction.
it bubbles
It fizzes.
nothing really
By mixing a paste of water and baking soda, and applying it to the area of the roaster oven where the bag melted, you should be able to clean the plastic off. If baking soda is not available you can try using cream of tartar.
not much.
you get baking soda in water, aka nothing. my mom drinks it when she feels sick i think
They'll explode! It happened to my grandma.
The chemical formula for baking soda is NaHCO3, which stands for sodium bicarbonate.