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What is baking soda?
Commonly known as baking soda, the chemical name is also sodium bicarbonate, and the chemical formula is NaHCO3.

Baking soda is alkaline in aqueous solution, and the teeth in the mouth will turn yellow due to the corrosion of acidic food residues. Baking soda can neutralize acidic food residues and play a cleaning role. It sounds a little disgusting, but as a chemistry teacher, I can only analyze it for you from the perspective of chemistry, hehe.