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Why does copper sulfate change its colour when water is added
The reaction forms aluminum sulfate and frees copper.
When Ammonia solution is added to Copper sulphate, at first a precipitate of Copper hydroxide is formed. If excess ammonia is added, finally a deep bluish solution of Tetraamine Copper(II) Sulfate is formed
It forms a complex - Copper (tetraamine) sulfate which is a deep inky blue color
The pink precipitate is finely divided copper, reduced to its metallic form by displacement from copper sulfate by iron, which is higher in the electromotive series than copper. Iron sulfate remains in solution.
Why does copper sulfate change its colour when water is added
The reaction forms aluminum sulfate and frees copper.
Copper sulfate is soluble in water and dissociated in ions (Cu2)+ and (SO4)2-.
Silver has a higher reduction potential than copper (ie silver "wants" to be in reduced form - metalic form - "more" than copper does). If silver METAL (Ag0) is added to a solution of CuSO4, nothing happens since silver is already reduced and it wants to stay that way.
The mass of water does not increase when copper sulfate is added to the water, unless the copper sulfate is hydrated. The mass of the mixture of water and copper sulfate, of course, does increase.
When Ammonia solution is added to Copper sulphate, at first a precipitate of Copper hydroxide is formed. If excess ammonia is added, finally a deep bluish solution of Tetraamine Copper(II) Sulfate is formed
It forms a complex - Copper (tetraamine) sulfate which is a deep inky blue color
Anhydrous copper sulfate solid is white. When it is added to water, it dissolves and the solution of aqueous copper sulfate becomes blue.
Its sulphate not sulfate and sorry im not sure my self
The pink precipitate is finely divided copper, reduced to its metallic form by displacement from copper sulfate by iron, which is higher in the electromotive series than copper. Iron sulfate remains in solution.
The solution will turn yellow
When an iron nail is dipped in the copper sulfate solution then iron displaces copper from the copper sulfate because iron is more reactive than copper.