Because this solution contain sodium hydroxide.
Yes, this solution (NH4OH, ammonium hydroxide) is alkaline.
Yes, NaOH (sodium hydroxide) is typically used in its aqueous form as a caustic alkaline solution.
Sodium hydroxide, commonly used in sodium extraction processes, is a strong base that contributes to the alkaline nature of the extract. When sodium hydroxide dissociates in water, it releases hydroxide ions which increase the pH of the solution, making it alkaline.
Sodium acetate is a salt formed by the reaction between acetic acid and sodium hydroxide. When dissolved in water, sodium acetate undergoes hydrolysis, releasing hydroxide ions (OH-) which make the solution alkaline. This alkaline property is due to the presence of excess hydroxide ions in the solution.
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
Violet
Aqueous solutions of borax are alkaline because when borax dissolves in water, it undergoes hydrolysis to produce sodium hydroxide. This sodium hydroxide then dissociates in water to release hydroxide ions, increasing the pH of the solution and making it alkaline.
When aqueous ammonia is added to sodium hydroxide, they react to form a solution of the sodium amide salt and water. The reaction can be represented as: 2NH3(aq) + 2NaOH(aq) → 2NaNH2(aq) + 2H2O(l). The sodium amide formed is a strong base.
This is a solution of sodium chloride in water.
Aqueous lead nitrate plus aqueous sodium iodide produce solid lead iodide and aqueous sodium nitrate.
Sodium chloride may form aqueous solutions.
Sodium sulfate can exist in an aqueous solution but it can also exist on its own as a crystalline solid.