What Is the Formula for Hydrochloric Acid?

By Staff WriterLast Updated Mar 25, 2020 7:13:21 PM ET
formula-hydrochloric-acid
Ed Reschke/Photolibrary/Getty Images

Hydrochloric acid, whose formula is HCL (aqueous), is a strong corrosive acid used mostly as a laboratory reagent. It is also an aqueous solution of water and hydrogen chloride, an acidic gas.

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