Bitter taste

Produces hydrogen ions in solution

Is often corrosive

Is slippery

Can cause severe burns and tissue damage

Exists as a crystalline solid in an undissolved state

Produces hydroxide ions in solution

Reacts with a predictable indicator to produce a color change

Soaps are an example

May be used to make fertilizer

Gastric juice in stomach

Produces hydrogen (hydronium) ions

Most compounds that produce this in aqueous solution are ionic

A solution that contains more H₃O⁺ (H⁺) ions than OH^- ions

HCl is an example

Ammonia is a common example

Can react with metals to form hydrogen gas

Turns blue litmus paper red

Turns red litmus paper blue