Nitrate is a negative ion (anion), NO3-. It does not exist in isolation, but must be part of a compound with a positive ion (cation). Examples of nitrate salts are sodium nitrate, NaNO3-, magnesium nitrate, Mg(NO3)2 and ammonium nitrate, NH4NO3. These salts are solid at room temperature and water soluble.
(When nitric acid, HNO3, dissolves in water the solution also contains the nitrate ion as well as hydrogen ions)
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Nitrate is typically found in the form of solid salts, such as potassium nitrate or sodium nitrate. However, nitrates can also dissolve in water, making them present in liquids. Nitrate itself is not a gas at room temperature and pressure.
Silver nitrate is a solid at room temperature. It dissolves in water to form a clear, colorless solution known as silver nitrate solution.
Typically: Solid, Liquid, and Gaseous States
Solid --> Liquid = melting Other changes of state: Solid --> Gas = sublimation Gas --> Solid = deposition Liquid --> Solid = freezing/solidification Gas --> Liquid = condensation Liquid --> Gas = vaporization
An aerosol is a colloidal suspension of fine particles (solid or liquid) in a gas.
Iron chloride is a solid at room temperature and pressure.