Casimir Pulaski was a talented military leader and brilliant battlefield tactician who, in the 1770s, had to leave his native Poland after participating in the unsuccessful wars to oust StanisÅaw II, a king put in place to rule at the behest of the Russians.
What is ammonia? Ammonia, also known as azane, is a chemical compound made of molecules which each contain one atom of nitrogen and three atoms of hydrogen. The molecular structure of ammonia is NH3. At ordinary room temperature and pressure, ammonia is a colourless gas which is lighter than air.
Quick Answer. An NH compound is a compound that contains both nitrogen and hydrogen. Two common NH compounds are ammonia and ammonium. The chemical formula for ammonium is NH4, and the chemical formula for ammonia is NH3. Continue Reading.