You also should avoid mixing bleach with other chemicals that are acid-based, including vinegar and oven cleaners. Mixing chlorine bleach with ammonia creates a chemical reaction that can be deadly.

A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

For AQA GCSE Chemistry, the specific details of how ammonia is ... in a reversible reaction: BiCl 3 (aq) + H 2 O(l) ⇌ BiOCl(s) + 2HCl(aq) The concentration of hydrochloric acid can be increased ...

Reaction with acid liberates hydrogen cyanide gas, one of the most toxic and rapidly acting poisons. Solutions must be kept basic (pH>8). Gloves are necessary to prevent absorption through the skin.