A rough & ready method involves memorising three numbers â 3, 5 and 8 â and the fact that 1 km in miles is approximately equal to the first of these numbers divided by the second, or alternatively the second divided by the third. That is: 1 km â 3/5 or 5/8 miles.
Ammonium chloride solutions with ammonia are used as buffer solutions. In paleontology, ammonium chloride vapor is deposited on fossils, where the substance forms a brilliant white, easily removed and fairly harmless and inert layer of tiny crystals.
Ammonia is a toxic, basic gas with the formula NH3. Ammonium nitrate is a solid, mildly acidic and potentially explosive salt with the formula NH4NO3. It is formed by the re â¦ action of ammonia with nitric acid.mmonium is a polyatomic ion with the formula NH4+. The ammonium ion is formed when ammonia reacts with an aci â¦ d and is itself mildly acidic. because it is positively charged is is not found on its own but accompanied by a negative ion such as in ammonium nitrate, NH4NO3.