It can be any of the three phases. Which phase it is depends on what temperature it is at. This is true for almost every compound known to man. At room temperature, ammonia, NH3, is a gas. It becomes a liquid if cooled below -28 degrees F, and will freeze into a solid once below -108 degrees F. Household ammonia is liquid at room temperature; it is a solution of ammonia in water.
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Ammonia is a gas at room temperature. It has a pungent smell and is commonly used in cleaning products and fertilizers.
Ammonia is a gas at room temperature.
Ammonia is a gas at room temperature and pressure. It can be liquefied under high pressure and low temperature, but it does not exist as a solid under normal conditions.
Dissolved Ammonia is generally gaseous ammonia reacting with water to form both NH3 (aq) molecules (i.e. ammonia molecules hydrogen bonded with water) and NH4+(aq) and OH- (aq) ions. These are all in solution, so technically its a liquid.
evaporation solid to liquid - melting liquid to gas - evaporation gas to liquid - condensation liquid to solid - freezing solid to gas and gas to solid - sublimation
Freezing (Liquid 2 solid) Melting (solid 2 liquid) Boiling (liquid 2 gas) Evaporation (liquid 2 gas) Condensation (gas 2 liquid) Sublimation (solid 2 gas) hope this helped