Aqueous hydrochloric acid, HCl(aq), is a strong acid and will burn your skin and clothing if contact by either is made. If you spill chemicals on your skin, flush with water immediately.

H2 gas is highly flammable. Do not allow it to come in contact with a Bunsen burner flame. Dispose of the generated H2 by venting it into the hood after measuring the volume.

Always wash your hands before leaving the laboratory.