Capillary pressure, as seen in petroleum engineering, is often modeled in a laboratory where it is recorded as the pressure required to displace some wetting phase by a non-wetting phase to establish equilibrium.
Asker's rating. 1  Ammonium nitrate is the chemical compound NH4 NO3. So there would be 3 different elements: nitrogen, hydrogen, and oxygen. 2  Ammonium nitrate is NH4NO3, making it three different elements: nitrogen, hydrogen, and oxygen. mmonkeyccup Â· 1 decade ago. 3  3 elements in ammonnium nitrate, NH4NO3. N from nitrogen, H from hydogen and O from oxygen. NH4 + + NO3---> NH4NO3. The compound consists of 2 polyatomic ions : first, NH4(1 positive charge) which consists of a)Nitrogen and b) Hydrogen, and the second one is NO3 (1 negative charge)consisting of Nitrogen and Oxygen.
Ammonia is a compound with the formula NH3, it is a weak base. Ammonium is a polyatomic ion with the formula NH4+.The ammonium ion is formed when ammonia reacts with an acid 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.mmonia is a compound with the formula NH3, it is a weak base. Ammonium is a polyatomic ion with the formula NH4+.