This article is about the aqueous solution. For the gas, see hydrogen chloride. Hydrochloric acid is a corrosive, strong mineral acid with many industrial uses. A colorless, highly pungent solution of hydrogen chloride (HCl) in water, when it reacts with an organic base it forms a hydrochloride salt.
Bacteria are intercellular organisms (i.e. they live in-between cells); whereas viruses are intracellular organisms (they infiltrate the host cell and live inside the cell). They change the host cell's genetic material from its normal function to producing the virus itself.
Bacteria are single-celled organisms. There are thousands of types of bacteria, and they live virtually anywhere. Bacteria are much bigger than viruses. (But theyâre all way too small for you to see.) Bacteria are much more complex than viruses. Bacteria have the tools to reproduce themselves, by themselves.