baking soda vs sodium hydrogen carbonate

baking soda and sodium hydrogen carbonate both are nouns.

Word	Noun	Adjective	Verb	Adverb
baking soda	Yes	No	No	No
sodium hydrogen carbonate	Yes	No	No	No

As nouns, baking soda and sodium hydrogen carbonate are synonyms defined as:

baking soda and sodium hydrogen carbonate: a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid

Other synonyms of baking soda include bicarbonate of soda, saleratus, sodium bicarbonate.

baking soda (noun)	sodium hydrogen carbonate (noun)
a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid	a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid