NO2-(aq) + H2O HNO2(aq) + OH -(aq)
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When sodium nitrite is added to water, it dissociates into sodium ions (Na+) and nitrite ions (NO2-). The solution may also become slightly acidic due to the hydrolysis of nitrite ions. Sodium nitrite in water can also react with other compounds to form nitric oxide, which can be toxic in high concentrations.
When sodium catches fire in water, it reacts vigorously to produce sodium hydroxide and hydrogen gas. The reaction is exothermic, causing the hydrogen gas to ignite, resulting in a small explosion and a burst of flame. It is important to exercise caution when handling reactive metals like sodium.
Sodium bicarbonate is put in water to help regulate the pH levels and make the water less acidic. It can also be used to treat heartburn and indigestion.
When sodium is put in water, it reacts vigorously, producing hydrogen gas and forming sodium hydroxide. The reaction is exothermic, meaning it releases heat, and can sometimes result in a small explosion due to the rapid production of hydrogen gas. It is important to handle this reaction with caution and in a controlled environment.
When sodium nitrate is put in water, it will dissociate into sodium ions and nitrate ions. This process is known as dissolution. The compound will fully dissolve in water, forming a clear, colorless solution.
In an aqueous solution of sodium chloride, sodium chloride is the solute and water is the solvent. Sodium chloride dissolves in water to form a homogeneous mixture.