塩えん化か水すい素そ

noun which may take the genitive case particle 'no'

hydrogen chloride

Chemical compound HCl; a colorless gas with a pungent odor. Used in industrial processes and as a reagent.

• 塩えん化か水すい素そは水みずに溶とけると塩えん酸さんになる。

  Hydrogen chloride becomes hydrochloric acid when dissolved in water.