NH3molekyylinä
NH3molekyylinä refers to ammonia as a molecule. Ammonia is a chemical compound with the formula NH3. It consists of one nitrogen atom bonded to three hydrogen atoms. The molecule is trigonal pyramidal in shape, with the nitrogen atom at the apex and the three hydrogen atoms at the base. The nitrogen atom is more electronegative than the hydrogen atoms, resulting in polar covalent bonds. This polarity gives the NH3 molecule a significant dipole moment, making it a polar molecule. This polarity is responsible for many of ammonia's unique properties, including its ability to form hydrogen bonds. Hydrogen bonding between ammonia molecules causes them to exist as a gas at room temperature and pressure, but it can be liquefied under pressure. Ammonia is a colorless gas with a characteristic pungent odor. It is soluble in water, forming ammonium hydroxide. The NH3 molecule can act as a Lewis base due to the presence of a lone pair of electrons on the nitrogen atom, which can readily donate to form coordinate covalent bonds. This property makes ammonia a common reagent in many chemical reactions.